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Let's break down the problem and solve each part step-by-step.

### Part (a)
The pie chart shows the market share of different browsers in La Molina:
- Chrome: 47%
- Firefox: 20%
- Microsoft Edge: 25%
- Safari: 5%
- Opera: 1%
- Others: 2%

The question asks to determine the percentage of Chrome users that are Firefox users. We need to find the ratio of Firefox's percentage to Chrome's percentage:

\[
\text{Percentage} = \left(\frac{\text{Firefox percentage}}{\text{Chrome percentage}}\right) \times 100 = \left(\frac{20}{47}\right) \times 100 \approx 42.55\%
\]

So, the correct answer for part (a) is approximately **42.55%**.

### Part (b)
Given dataLet's break down the problem and solve each part step-by-step.

### Part (a)
The pie chart shows the market share of different browsers in La Molina:
- Chrome: 47%
- Firefox: 20%
- Microsoft Edge: 25%
- Safari: 5%
- Opera: 1%
- Others: 2%

The question asks to determine the percentage of Chrome users that are Firefox users. We need to find the ratio of Firefox's percentage to Chrome's percentage:

\[
\text{Percentage} = \left(\frac{\text{Firefox percentage}}{\text{Chrome percentage}}\right) \times 100 = \left(\frac{20}{47}\right) \times 100 \approx 42.55\%
\]

So, the correct answer for part (a) is approximately **42.55%**.

### Part (b)
Given 
- The number of people using Chrome in La Molina = 74,260
- Chrome's market share = 47%

We need to find the total population of La Molina. Let \( N \) be the total population. Since 47% of the population uses Chrome, we have:

\[
0.47 \times N = 74,260
\]

To find \( N \):

\[
N = \frac{74,260}{0.47} \approx 158,000
\]

Thus, the total population of La Molina is approximately **158,000** people.

### Summary of Answers
- **Part (a):** 42.55%
- **Part (b):** 158,000 people

Would you like more details or have any questions about this process?

### 5 Related Questions
1. What percentage of the population uses Microsoft Edge in La Molina?
2. If 10% of the Firefox users switched to Safari, how would that affect Safari's market share?
3. How many people use browsers other than Chrome, based on the total population found?
4. If the total population increased by 5% next year, how many people would use Chrome assuming the market share remains the same?
5. What fraction of the population uses browsers categorized as "Others"?

### Tip
When dealing with percentage problems, always ensure that the base values (denominators) are correctly identified to avoid misinterpretation of ratios and proportions.

Determine the percentage of Firefox users among Chrome users and calculate the total population of La Molina based on browser statistics.

Learn how to calculate the percentage of Firefox users among Chrome users and estimate the total population of La Molina based on the given browser market share data. This step-by-step solution is suitable for students in Grades 8-10.

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