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Finding the Fourth Proportional to 66,772.48, 100,089.50 and 41,755.11

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Solution

The fourth proportional to 66,772.48, 100,089.50 and 41,755.11 is: 62,589.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,772.48 : 100,089.50 = 41,755.11 : x
  2. Step 2: Convert to fraction form
    66,772.48/100,089.50 = 41,755.11/x
  3. Step 3: Cross multiply
    66,772.48x = 100,089.50 × 41,755.11
  4. Step 4: Simplify right side
    66,772.48x = 4,179,248,082.35
  5. Step 5: Solve for x
    x = 4,179,248,082.35/66,772.48
  6. Step 6: Final answer
    x = 62,589.38

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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.