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Finding the Fourth Proportional to 132,107.60, 198,161.40 and 43,374.80

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Solution

The fourth proportional to 132,107.60, 198,161.40 and 43,374.80 is: 65,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,107.60 : 198,161.40 = 43,374.80 : x
  2. Step 2: Convert to fraction form
    132,107.60/198,161.40 = 43,374.80/x
  3. Step 3: Cross multiply
    132,107.60x = 198,161.40 × 43,374.80
  4. Step 4: Simplify right side
    132,107.60x = 8,595,211,092.72
  5. Step 5: Solve for x
    x = 8,595,211,092.72/132,107.60
  6. Step 6: Final answer
    x = 65,062.20

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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.