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Finding the Fourth Proportional to 72,251.38, 108,387.42 and 22,335.82

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Solution

The fourth proportional to 72,251.38, 108,387.42 and 22,335.82 is: 33,506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,251.38 : 108,387.42 = 22,335.82 : x
  2. Step 2: Convert to fraction form
    72,251.38/108,387.42 = 22,335.82/x
  3. Step 3: Cross multiply
    72,251.38x = 108,387.42 × 22,335.82
  4. Step 4: Simplify right side
    72,251.38x = 2,420,921,903.38
  5. Step 5: Solve for x
    x = 2,420,921,903.38/72,251.38
  6. Step 6: Final answer
    x = 33,506.93

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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.