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Finding the Fourth Proportional to 54,879.44, 82,319.92 and 36,278.96

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Solution

The fourth proportional to 54,879.44, 82,319.92 and 36,278.96 is: 54,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,879.44 : 82,319.92 = 36,278.96 : x
  2. Step 2: Convert to fraction form
    54,879.44/82,319.92 = 36,278.96/x
  3. Step 3: Cross multiply
    54,879.44x = 82,319.92 × 36,278.96
  4. Step 4: Simplify right side
    54,879.44x = 2,986,481,084.88
  5. Step 5: Solve for x
    x = 2,986,481,084.88/54,879.44
  6. Step 6: Final answer
    x = 54,418.94

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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.