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Finding the Fourth Proportional to 337,812.60, 506,718.90 and 138,001.80

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Solution

The fourth proportional to 337,812.60, 506,718.90 and 138,001.80 is: 207,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,812.60 : 506,718.90 = 138,001.80 : x
  2. Step 2: Convert to fraction form
    337,812.60/506,718.90 = 138,001.80/x
  3. Step 3: Cross multiply
    337,812.60x = 506,718.90 × 138,001.80
  4. Step 4: Simplify right side
    337,812.60x = 69,928,120,294.02
  5. Step 5: Solve for x
    x = 69,928,120,294.02/337,812.60
  6. Step 6: Final answer
    x = 207,002.70

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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.