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Finding the Fourth Proportional to 137,062.20, 205,593.30 and 125,542.20

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Solution

The fourth proportional to 137,062.20, 205,593.30 and 125,542.20 is: 188,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,062.20 : 205,593.30 = 125,542.20 : x
  2. Step 2: Convert to fraction form
    137,062.20/205,593.30 = 125,542.20/x
  3. Step 3: Cross multiply
    137,062.20x = 205,593.30 × 125,542.20
  4. Step 4: Simplify right side
    137,062.20x = 25,810,635,187.26
  5. Step 5: Solve for x
    x = 25,810,635,187.26/137,062.20
  6. Step 6: Final answer
    x = 188,313.30

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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.