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Finding the Fourth Proportional to 275,651.60, 413,380.20 and 125,963.60

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Solution

The fourth proportional to 275,651.60, 413,380.20 and 125,963.60 is: 188,900.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,651.60 : 413,380.20 = 125,963.60 : x
  2. Step 2: Convert to fraction form
    275,651.60/413,380.20 = 125,963.60/x
  3. Step 3: Cross multiply
    275,651.60x = 413,380.20 × 125,963.60
  4. Step 4: Simplify right side
    275,651.60x = 52,070,858,160.72
  5. Step 5: Solve for x
    x = 52,070,858,160.72/275,651.60
  6. Step 6: Final answer
    x = 188,900.98

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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.