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Finding the Fourth Proportional to 137,610.80, 206,221.80 and 101,792.60

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Solution

The fourth proportional to 137,610.80, 206,221.80 and 101,792.60 is: 152,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,610.80 : 206,221.80 = 101,792.60 : x
  2. Step 2: Convert to fraction form
    137,610.80/206,221.80 = 101,792.60/x
  3. Step 3: Cross multiply
    137,610.80x = 206,221.80 × 101,792.60
  4. Step 4: Simplify right side
    137,610.80x = 20,991,853,198.68
  5. Step 5: Solve for x
    x = 20,991,853,198.68/137,610.80
  6. Step 6: Final answer
    x = 152,545.10

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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.