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Finding the Fourth Proportional to 132,513.62, 198,728.31 and 43,750.58

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Solution

The fourth proportional to 132,513.62, 198,728.31 and 43,750.58 is: 65,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,513.62 : 198,728.31 = 43,750.58 : x
  2. Step 2: Convert to fraction form
    132,513.62/198,728.31 = 43,750.58/x
  3. Step 3: Cross multiply
    132,513.62x = 198,728.31 × 43,750.58
  4. Step 4: Simplify right side
    132,513.62x = 8,694,478,824.92
  5. Step 5: Solve for x
    x = 8,694,478,824.92/132,513.62
  6. Step 6: Final answer
    x = 65,611.96

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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.