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Finding the Fourth Proportional to 88,751.97, 133,013.90 and 77,306.93

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Solution

The fourth proportional to 88,751.97, 133,013.90 and 77,306.93 is: 115,861.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,751.97 : 133,013.90 = 77,306.93 : x
  2. Step 2: Convert to fraction form
    88,751.97/133,013.90 = 77,306.93/x
  3. Step 3: Cross multiply
    88,751.97x = 133,013.90 × 77,306.93
  4. Step 4: Simplify right side
    88,751.97x = 10,282,895,204.72
  5. Step 5: Solve for x
    x = 10,282,895,204.72/88,751.97
  6. Step 6: Final answer
    x = 115,861.04

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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.