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Finding the Fourth Proportional to 132,711.60, 199,067.40 and 101,218.80

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Solution

The fourth proportional to 132,711.60, 199,067.40 and 101,218.80 is: 151,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,711.60 : 199,067.40 = 101,218.80 : x
  2. Step 2: Convert to fraction form
    132,711.60/199,067.40 = 101,218.80/x
  3. Step 3: Cross multiply
    132,711.60x = 199,067.40 × 101,218.80
  4. Step 4: Simplify right side
    132,711.60x = 20,149,363,347.12
  5. Step 5: Solve for x
    x = 20,149,363,347.12/132,711.60
  6. Step 6: Final answer
    x = 151,828.20

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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.