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Finding the Fourth Proportional to 72,553.60, 108,781.44 and 25,156.48

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Solution

The fourth proportional to 72,553.60, 108,781.44 and 25,156.48 is: 37,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,553.60 : 108,781.44 = 25,156.48 : x
  2. Step 2: Convert to fraction form
    72,553.60/108,781.44 = 25,156.48/x
  3. Step 3: Cross multiply
    72,553.60x = 108,781.44 × 25,156.48
  4. Step 4: Simplify right side
    72,553.60x = 2,736,558,119.73
  5. Step 5: Solve for x
    x = 2,736,558,119.73/72,553.60
  6. Step 6: Final answer
    x = 37,717.74

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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.