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Finding the Fourth Proportional to 72,251.82, 108,355.32 and 25,493.76

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Solution

The fourth proportional to 72,251.82, 108,355.32 and 25,493.76 is: 38,232.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,251.82 : 108,355.32 = 25,493.76 : x
  2. Step 2: Convert to fraction form
    72,251.82/108,355.32 = 25,493.76/x
  3. Step 3: Cross multiply
    72,251.82x = 108,355.32 × 25,493.76
  4. Step 4: Simplify right side
    72,251.82x = 2,762,384,522.80
  5. Step 5: Solve for x
    x = 2,762,384,522.80/72,251.82
  6. Step 6: Final answer
    x = 38,232.73

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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.