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Finding the Fourth Proportional to 88,641.68, 132,767.06 and 73,269.70

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Solution

The fourth proportional to 88,641.68, 132,767.06 and 73,269.70 is: 109,742.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,641.68 : 132,767.06 = 73,269.70 : x
  2. Step 2: Convert to fraction form
    88,641.68/132,767.06 = 73,269.70/x
  3. Step 3: Cross multiply
    88,641.68x = 132,767.06 × 73,269.70
  4. Step 4: Simplify right side
    88,641.68x = 9,727,801,957.82
  5. Step 5: Solve for x
    x = 9,727,801,957.82/88,641.68
  6. Step 6: Final answer
    x = 109,742.98

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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.