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Finding the Fourth Proportional to 144,891.25, 217,357.16 and 136,923.25

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Solution

The fourth proportional to 144,891.25, 217,357.16 and 136,923.25 is: 205,404.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,891.25 : 217,357.16 = 136,923.25 : x
  2. Step 2: Convert to fraction form
    144,891.25/217,357.16 = 136,923.25/x
  3. Step 3: Cross multiply
    144,891.25x = 217,357.16 × 136,923.25
  4. Step 4: Simplify right side
    144,891.25x = 29,761,248,757.97
  5. Step 5: Solve for x
    x = 29,761,248,757.97/144,891.25
  6. Step 6: Final answer
    x = 205,404.04

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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.