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Finding the Fourth Proportional to 72,398.52, 108,571.14 and 25,001.55

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Solution

The fourth proportional to 72,398.52, 108,571.14 and 25,001.55 is: 37,493.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,398.52 : 108,571.14 = 25,001.55 : x
  2. Step 2: Convert to fraction form
    72,398.52/108,571.14 = 25,001.55/x
  3. Step 3: Cross multiply
    72,398.52x = 108,571.14 × 25,001.55
  4. Step 4: Simplify right side
    72,398.52x = 2,714,446,785.27
  5. Step 5: Solve for x
    x = 2,714,446,785.27/72,398.52
  6. Step 6: Final answer
    x = 37,493.13

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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.