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Finding the Fourth Proportional to 132,493.55, 198,746.70 and 43,745.09

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Solution

The fourth proportional to 132,493.55, 198,746.70 and 43,745.09 is: 65,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,493.55 : 198,746.70 = 43,745.09 : x
  2. Step 2: Convert to fraction form
    132,493.55/198,746.70 = 43,745.09/x
  3. Step 3: Cross multiply
    132,493.55x = 198,746.70 × 43,745.09
  4. Step 4: Simplify right side
    132,493.55x = 8,694,191,284.97
  5. Step 5: Solve for x
    x = 8,694,191,284.97/132,493.55
  6. Step 6: Final answer
    x = 65,619.73

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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.