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Finding the Fourth Proportional to 73,044.60, 109,491.30 and 39,694.20

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Solution

The fourth proportional to 73,044.60, 109,491.30 and 39,694.20 is: 59,500.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,044.60 : 109,491.30 = 39,694.20 : x
  2. Step 2: Convert to fraction form
    73,044.60/109,491.30 = 39,694.20/x
  3. Step 3: Cross multiply
    73,044.60x = 109,491.30 × 39,694.20
  4. Step 4: Simplify right side
    73,044.60x = 4,346,169,560.46
  5. Step 5: Solve for x
    x = 4,346,169,560.46/73,044.60
  6. Step 6: Final answer
    x = 59,500.22

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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.