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Finding the Fourth Proportional to 99,233.97, 149,512.95 and 89,757.24

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Solution

The fourth proportional to 99,233.97, 149,512.95 and 89,757.24 is: 135,234.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,233.97 : 149,512.95 = 89,757.24 : x
  2. Step 2: Convert to fraction form
    99,233.97/149,512.95 = 89,757.24/x
  3. Step 3: Cross multiply
    99,233.97x = 149,512.95 × 89,757.24
  4. Step 4: Simplify right side
    99,233.97x = 13,419,869,736.26
  5. Step 5: Solve for x
    x = 13,419,869,736.26/99,233.97
  6. Step 6: Final answer
    x = 135,234.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.