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Finding the Fourth Proportional to 144,675.10, 217,012.65 and 88,687.90

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Solution

The fourth proportional to 144,675.10, 217,012.65 and 88,687.90 is: 133,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,675.10 : 217,012.65 = 88,687.90 : x
  2. Step 2: Convert to fraction form
    144,675.10/217,012.65 = 88,687.90/x
  3. Step 3: Cross multiply
    144,675.10x = 217,012.65 × 88,687.90
  4. Step 4: Simplify right side
    144,675.10x = 19,246,396,201.94
  5. Step 5: Solve for x
    x = 19,246,396,201.94/144,675.10
  6. Step 6: Final answer
    x = 133,031.85

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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.