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Finding the Fourth Proportional to 72,269.28, 108,468.72 and 60,496.74

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Solution

The fourth proportional to 72,269.28, 108,468.72 and 60,496.74 is: 90,799.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,269.28 : 108,468.72 = 60,496.74 : x
  2. Step 2: Convert to fraction form
    72,269.28/108,468.72 = 60,496.74/x
  3. Step 3: Cross multiply
    72,269.28x = 108,468.72 × 60,496.74
  4. Step 4: Simplify right side
    72,269.28x = 6,562,003,951.97
  5. Step 5: Solve for x
    x = 6,562,003,951.97/72,269.28
  6. Step 6: Final answer
    x = 90,799.35

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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.