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Finding the Fourth Proportional to 137,115.60, 205,576.20 and 52,843.20

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Solution

The fourth proportional to 137,115.60, 205,576.20 and 52,843.20 is: 79,227.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,115.60 : 205,576.20 = 52,843.20 : x
  2. Step 2: Convert to fraction form
    137,115.60/205,576.20 = 52,843.20/x
  3. Step 3: Cross multiply
    137,115.60x = 205,576.20 × 52,843.20
  4. Step 4: Simplify right side
    137,115.60x = 10,863,304,251.84
  5. Step 5: Solve for x
    x = 10,863,304,251.84/137,115.60
  6. Step 6: Final answer
    x = 79,227.34

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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.