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Finding the Fourth Proportional to 73,805.60, 110,719.20 and 38,747.90

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Solution

The fourth proportional to 73,805.60, 110,719.20 and 38,747.90 is: 58,127.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,805.60 : 110,719.20 = 38,747.90 : x
  2. Step 2: Convert to fraction form
    73,805.60/110,719.20 = 38,747.90/x
  3. Step 3: Cross multiply
    73,805.60x = 110,719.20 × 38,747.90
  4. Step 4: Simplify right side
    73,805.60x = 4,290,136,489.68
  5. Step 5: Solve for x
    x = 4,290,136,489.68/73,805.60
  6. Step 6: Final answer
    x = 58,127.52

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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.