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Finding the Fourth Proportional to 132,661.56, 198,992.34 and 43,891.24

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Solution

The fourth proportional to 132,661.56, 198,992.34 and 43,891.24 is: 65,836.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,661.56 : 198,992.34 = 43,891.24 : x
  2. Step 2: Convert to fraction form
    132,661.56/198,992.34 = 43,891.24/x
  3. Step 3: Cross multiply
    132,661.56x = 198,992.34 × 43,891.24
  4. Step 4: Simplify right side
    132,661.56x = 8,734,020,553.10
  5. Step 5: Solve for x
    x = 8,734,020,553.10/132,661.56
  6. Step 6: Final answer
    x = 65,836.86

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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.