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Finding the Fourth Proportional to 54,559.90, 81,708.43 and 36,976.42

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Solution

The fourth proportional to 54,559.90, 81,708.43 and 36,976.42 is: 55,375.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,559.90 : 81,708.43 = 36,976.42 : x
  2. Step 2: Convert to fraction form
    54,559.90/81,708.43 = 36,976.42/x
  3. Step 3: Cross multiply
    54,559.90x = 81,708.43 × 36,976.42
  4. Step 4: Simplify right side
    54,559.90x = 3,021,285,225.22
  5. Step 5: Solve for x
    x = 3,021,285,225.22/54,559.90
  6. Step 6: Final answer
    x = 55,375.56

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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.