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Finding the Fourth Proportional to 83,593.20, 125,418.60 and 36,879.60

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Solution

The fourth proportional to 83,593.20, 125,418.60 and 36,879.60 is: 55,332.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,593.20 : 125,418.60 = 36,879.60 : x
  2. Step 2: Convert to fraction form
    83,593.20/125,418.60 = 36,879.60/x
  3. Step 3: Cross multiply
    83,593.20x = 125,418.60 × 36,879.60
  4. Step 4: Simplify right side
    83,593.20x = 4,625,387,800.56
  5. Step 5: Solve for x
    x = 4,625,387,800.56/83,593.20
  6. Step 6: Final answer
    x = 55,332.11

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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.