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Finding the Fourth Proportional to 144,469.31, 216,650.07 and 49,672.65

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Solution

The fourth proportional to 144,469.31, 216,650.07 and 49,672.65 is: 74,490.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,469.31 : 216,650.07 = 49,672.65 : x
  2. Step 2: Convert to fraction form
    144,469.31/216,650.07 = 49,672.65/x
  3. Step 3: Cross multiply
    144,469.31x = 216,650.07 × 49,672.65
  4. Step 4: Simplify right side
    144,469.31x = 10,761,583,099.59
  5. Step 5: Solve for x
    x = 10,761,583,099.59/144,469.31
  6. Step 6: Final answer
    x = 74,490.45

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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.