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Finding the Fourth Proportional to 80,279.72, 110,786.90 and 44,470.28

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Solution

The fourth proportional to 80,279.72, 110,786.90 and 44,470.28 is: 61,369.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,279.72 : 110,786.90 = 44,470.28 : x
  2. Step 2: Convert to fraction form
    80,279.72/110,786.90 = 44,470.28/x
  3. Step 3: Cross multiply
    80,279.72x = 110,786.90 × 44,470.28
  4. Step 4: Simplify right side
    80,279.72x = 4,926,724,463.33
  5. Step 5: Solve for x
    x = 4,926,724,463.33/80,279.72
  6. Step 6: Final answer
    x = 61,369.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.