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Finding the Fourth Proportional to 81,589.86, 122,270.88 and 44,069.04

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Solution

The fourth proportional to 81,589.86, 122,270.88 and 44,069.04 is: 66,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,589.86 : 122,270.88 = 44,069.04 : x
  2. Step 2: Convert to fraction form
    81,589.86/122,270.88 = 44,069.04/x
  3. Step 3: Cross multiply
    81,589.86x = 122,270.88 × 44,069.04
  4. Step 4: Simplify right side
    81,589.86x = 5,388,360,301.56
  5. Step 5: Solve for x
    x = 5,388,360,301.56/81,589.86
  6. Step 6: Final answer
    x = 66,042.03

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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.