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Finding the Fourth Proportional to 193,755.70, 290,439.15 and 88,650.10

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Solution

The fourth proportional to 193,755.70, 290,439.15 and 88,650.10 is: 132,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,755.70 : 290,439.15 = 88,650.10 : x
  2. Step 2: Convert to fraction form
    193,755.70/290,439.15 = 88,650.10/x
  3. Step 3: Cross multiply
    193,755.70x = 290,439.15 × 88,650.10
  4. Step 4: Simplify right side
    193,755.70x = 25,747,459,691.42
  5. Step 5: Solve for x
    x = 25,747,459,691.42/193,755.70
  6. Step 6: Final answer
    x = 132,886.21

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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.