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Finding the Fourth Proportional to 167,841.20, 251,531.40 and 136,737.20

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Solution

The fourth proportional to 167,841.20, 251,531.40 and 136,737.20 is: 204,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,841.20 : 251,531.40 = 136,737.20 : x
  2. Step 2: Convert to fraction form
    167,841.20/251,531.40 = 136,737.20/x
  3. Step 3: Cross multiply
    167,841.20x = 251,531.40 × 136,737.20
  4. Step 4: Simplify right side
    167,841.20x = 34,393,699,348.08
  5. Step 5: Solve for x
    x = 34,393,699,348.08/167,841.20
  6. Step 6: Final answer
    x = 204,918.10

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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.