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Finding the Fourth Proportional to 132,125.91, 198,114.56 and 43,371.98

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Solution

The fourth proportional to 132,125.91, 198,114.56 and 43,371.98 is: 65,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,125.91 : 198,114.56 = 43,371.98 : x
  2. Step 2: Convert to fraction form
    132,125.91/198,114.56 = 43,371.98/x
  3. Step 3: Cross multiply
    132,125.91x = 198,114.56 × 43,371.98
  4. Step 4: Simplify right side
    132,125.91x = 8,592,620,734.03
  5. Step 5: Solve for x
    x = 8,592,620,734.03/132,125.91
  6. Step 6: Final answer
    x = 65,033.58

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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.