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Finding the Fourth Proportional to 138,395.52, 206,834.96 and 101,034.27

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Solution

The fourth proportional to 138,395.52, 206,834.96 and 101,034.27 is: 150,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,395.52 : 206,834.96 = 101,034.27 : x
  2. Step 2: Convert to fraction form
    138,395.52/206,834.96 = 101,034.27/x
  3. Step 3: Cross multiply
    138,395.52x = 206,834.96 × 101,034.27
  4. Step 4: Simplify right side
    138,395.52x = 20,897,419,194.08
  5. Step 5: Solve for x
    x = 20,897,419,194.08/138,395.52
  6. Step 6: Final answer
    x = 150,997.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.