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Finding the Fourth Proportional to 144,761.08, 217,131.12 and 44,918.72

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Solution

The fourth proportional to 144,761.08, 217,131.12 and 44,918.72 is: 67,374.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,761.08 : 217,131.12 = 44,918.72 : x
  2. Step 2: Convert to fraction form
    144,761.08/217,131.12 = 44,918.72/x
  3. Step 3: Cross multiply
    144,761.08x = 217,131.12 × 44,918.72
  4. Step 4: Simplify right side
    144,761.08x = 9,753,251,982.57
  5. Step 5: Solve for x
    x = 9,753,251,982.57/144,761.08
  6. Step 6: Final answer
    x = 67,374.82

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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.