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Finding the Fourth Proportional to 72,551.88, 108,789.03 and 25,154.82

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Solution

The fourth proportional to 72,551.88, 108,789.03 and 25,154.82 is: 37,718.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,551.88 : 108,789.03 = 25,154.82 : x
  2. Step 2: Convert to fraction form
    72,551.88/108,789.03 = 25,154.82/x
  3. Step 3: Cross multiply
    72,551.88x = 108,789.03 × 25,154.82
  4. Step 4: Simplify right side
    72,551.88x = 2,736,568,467.62
  5. Step 5: Solve for x
    x = 2,736,568,467.62/72,551.88
  6. Step 6: Final answer
    x = 37,718.78

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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.