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Finding the Fourth Proportional to 132,520.62, 198,738.81 and 43,757.58

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Solution

The fourth proportional to 132,520.62, 198,738.81 and 43,757.58 is: 65,622.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,520.62 : 198,738.81 = 43,757.58 : x
  2. Step 2: Convert to fraction form
    132,520.62/198,738.81 = 43,757.58/x
  3. Step 3: Cross multiply
    132,520.62x = 198,738.81 × 43,757.58
  4. Step 4: Simplify right side
    132,520.62x = 8,696,329,377.68
  5. Step 5: Solve for x
    x = 8,696,329,377.68/132,520.62
  6. Step 6: Final answer
    x = 65,622.46

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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.