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Finding the Fourth Proportional to 72,320.97, 108,488.60 and 24,929.83

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Solution

The fourth proportional to 72,320.97, 108,488.60 and 24,929.83 is: 37,397.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,320.97 : 108,488.60 = 24,929.83 : x
  2. Step 2: Convert to fraction form
    72,320.97/108,488.60 = 24,929.83/x
  3. Step 3: Cross multiply
    72,320.97x = 108,488.60 × 24,929.83
  4. Step 4: Simplify right side
    72,320.97x = 2,704,601,823.46
  5. Step 5: Solve for x
    x = 2,704,601,823.46/72,320.97
  6. Step 6: Final answer
    x = 37,397.20

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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.