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Finding the Fourth Proportional to 80,843.96, 111,557.88 and 45,042.44

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Solution

The fourth proportional to 80,843.96, 111,557.88 and 45,042.44 is: 62,154.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,843.96 : 111,557.88 = 45,042.44 : x
  2. Step 2: Convert to fraction form
    80,843.96/111,557.88 = 45,042.44/x
  3. Step 3: Cross multiply
    80,843.96x = 111,557.88 × 45,042.44
  4. Step 4: Simplify right side
    80,843.96x = 5,024,839,116.43
  5. Step 5: Solve for x
    x = 5,024,839,116.43/80,843.96
  6. Step 6: Final answer
    x = 62,154.79

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1.5x scale

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.