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Finding the Fourth Proportional to 66,614.75, 99,743.06 and 50,744.18

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Solution

The fourth proportional to 66,614.75, 99,743.06 and 50,744.18 is: 75,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,614.75 : 99,743.06 = 50,744.18 : x
  2. Step 2: Convert to fraction form
    66,614.75/99,743.06 = 50,744.18/x
  3. Step 3: Cross multiply
    66,614.75x = 99,743.06 × 50,744.18
  4. Step 4: Simplify right side
    66,614.75x = 5,061,379,291.68
  5. Step 5: Solve for x
    x = 5,061,379,291.68/66,614.75
  6. Step 6: Final answer
    x = 75,979.86

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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.