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Finding the Fourth Proportional to 72,253.38, 108,390.42 and 22,337.82

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Solution

The fourth proportional to 72,253.38, 108,390.42 and 22,337.82 is: 33,509.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,253.38 : 108,390.42 = 22,337.82 : x
  2. Step 2: Convert to fraction form
    72,253.38/108,390.42 = 22,337.82/x
  3. Step 3: Cross multiply
    72,253.38x = 108,390.42 × 22,337.82
  4. Step 4: Simplify right side
    72,253.38x = 2,421,205,691.68
  5. Step 5: Solve for x
    x = 2,421,205,691.68/72,253.38
  6. Step 6: Final answer
    x = 33,509.93

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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.