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Finding the Fourth Proportional to 144,717.89, 217,210.11 and 73,691.31

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Solution

The fourth proportional to 144,717.89, 217,210.11 and 73,691.31 is: 110,604.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,717.89 : 217,210.11 = 73,691.31 : x
  2. Step 2: Convert to fraction form
    144,717.89/217,210.11 = 73,691.31/x
  3. Step 3: Cross multiply
    144,717.89x = 217,210.11 × 73,691.31
  4. Step 4: Simplify right side
    144,717.89x = 16,006,496,562.08
  5. Step 5: Solve for x
    x = 16,006,496,562.08/144,717.89
  6. Step 6: Final answer
    x = 110,604.82

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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.