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Finding the Fourth Proportional to 225,931.04, 338,660.04 and 76,119.56

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Solution

The fourth proportional to 225,931.04, 338,660.04 and 76,119.56 is: 114,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,931.04 : 338,660.04 = 76,119.56 : x
  2. Step 2: Convert to fraction form
    225,931.04/338,660.04 = 76,119.56/x
  3. Step 3: Cross multiply
    225,931.04x = 338,660.04 × 76,119.56
  4. Step 4: Simplify right side
    225,931.04x = 25,778,653,234.38
  5. Step 5: Solve for x
    x = 25,778,653,234.38/225,931.04
  6. Step 6: Final answer
    x = 114,099.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.