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Finding the Fourth Proportional to 174,371.20, 261,556.80 and 132,380.80

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Solution

The fourth proportional to 174,371.20, 261,556.80 and 132,380.80 is: 198,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,371.20 : 261,556.80 = 132,380.80 : x
  2. Step 2: Convert to fraction form
    174,371.20/261,556.80 = 132,380.80/x
  3. Step 3: Cross multiply
    174,371.20x = 261,556.80 × 132,380.80
  4. Step 4: Simplify right side
    174,371.20x = 34,625,098,429.44
  5. Step 5: Solve for x
    x = 34,625,098,429.44/174,371.20
  6. Step 6: Final answer
    x = 198,571.20

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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.