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Finding the Fourth Proportional to 144,687.33, 217,092.96 and 74,615.85

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Solution

The fourth proportional to 144,687.33, 217,092.96 and 74,615.85 is: 111,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,687.33 : 217,092.96 = 74,615.85 : x
  2. Step 2: Convert to fraction form
    144,687.33/217,092.96 = 74,615.85/x
  3. Step 3: Cross multiply
    144,687.33x = 217,092.96 × 74,615.85
  4. Step 4: Simplify right side
    144,687.33x = 16,198,575,739.42
  5. Step 5: Solve for x
    x = 16,198,575,739.42/144,687.33
  6. Step 6: Final answer
    x = 111,955.73

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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.