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Finding the Fourth Proportional to 73,532.20, 110,301.90 and 38,540.20

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Solution

The fourth proportional to 73,532.20, 110,301.90 and 38,540.20 is: 57,812.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,532.20 : 110,301.90 = 38,540.20 : x
  2. Step 2: Convert to fraction form
    73,532.20/110,301.90 = 38,540.20/x
  3. Step 3: Cross multiply
    73,532.20x = 110,301.90 × 38,540.20
  4. Step 4: Simplify right side
    73,532.20x = 4,251,057,286.38
  5. Step 5: Solve for x
    x = 4,251,057,286.38/73,532.20
  6. Step 6: Final answer
    x = 57,812.19

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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.