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The problem asks for the equivalent monthly prepaid interest rate (tasa de interés mensual anticipada) given a 7.4% semiannual prepaid interest rate (7.4% semestre anticipado).

Let's break this down.

### Step 1: Understanding the semiannual prepaid interest rate
The semiannual prepaid interest rate of 7.4% means that this is the interest paid in advance for a period of six months.

### Step 2: Finding the monthly equivalent rate
To find the equivalent monthly prepaid rate, we use the following formula for converting prepaid rates:

\[
(1 + i_{mensual})^{6} = 1 + i_{semestral}
\]

Where:
- \( i_{mensual} \) is the monthly prepaid interest rate.
- \( i_{semestral} = 7.4\% \text{ or } 0.074 \text{ as a decimal.}\)

We solve for \( i_{mensual} \):

\[
(1 + i_{mensual})^{6} = 1 + 0.074
\]
\[
(1 + i_{mensual})^{6} = 1.074
\]
\[
1 + i_{mensual} = \left( 1.074 \right)^{\frac{1}{6}}
\]
\[
i_{mensual} = \left( 1.074 \right)^{\frac{1}{6}} - 1
\]

Let me calculate that.The equivalent monthly prepaid interest rate is approximately 1.197%. 

However, none of the options provided exactly match this value, so the closest option to this result would be:

- **1.2731% Mes Anticipado**

Would you like more details or have any questions?

Here are some related questions to expand your understanding:

1. How would the calculation change if the interest were compounded monthly instead of prepaid?
2. What is the difference between prepaid and compounded interest?
3. Can we use the same method to find a quarterly equivalent rate from a semiannual rate?
4. How does the formula change for continuous compounding?
5. What are other common financial applications of prepaid interest rates?

**Tip:** When dealing with prepaid (or anticipado) rates, remember that interest is accounted for at the beginning of the period, unlike compounded rates.

A person is paying a 7.4% prepaid interest rate for six months and wants to know the equivalent monthly prepaid interest rate.

Learn how to convert a 7.4% semiannual prepaid interest rate to an equivalent monthly prepaid rate using mathematical formulas. Includes step-by-step calculations and examples.

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