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Finding the Fourth Proportional to 159,644.50, 220,299.36 and 88,025.11

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Solution

The fourth proportional to 159,644.50, 220,299.36 and 88,025.11 is: 121,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,644.50 : 220,299.36 = 88,025.11 : x
  2. Step 2: Convert to fraction form
    159,644.50/220,299.36 = 88,025.11/x
  3. Step 3: Cross multiply
    159,644.50x = 220,299.36 × 88,025.11
  4. Step 4: Simplify right side
    159,644.50x = 19,391,876,250.41
  5. Step 5: Solve for x
    x = 19,391,876,250.41/159,644.50
  6. Step 6: Final answer
    x = 121,469.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.