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Finding the Fourth Proportional to 132,626.52, 198,969.72 and 43,879.80

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Solution

The fourth proportional to 132,626.52, 198,969.72 and 43,879.80 is: 65,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,626.52 : 198,969.72 = 43,879.80 : x
  2. Step 2: Convert to fraction form
    132,626.52/198,969.72 = 43,879.80/x
  3. Step 3: Cross multiply
    132,626.52x = 198,969.72 × 43,879.80
  4. Step 4: Simplify right side
    132,626.52x = 8,730,751,519.66
  5. Step 5: Solve for x
    x = 8,730,751,519.66/132,626.52
  6. Step 6: Final answer
    x = 65,829.61

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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.