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Finding the Fourth Proportional to 124,170.57, 186,255.86 and 54,049.88

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Solution

The fourth proportional to 124,170.57, 186,255.86 and 54,049.88 is: 81,074.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,170.57 : 186,255.86 = 54,049.88 : x
  2. Step 2: Convert to fraction form
    124,170.57/186,255.86 = 54,049.88/x
  3. Step 3: Cross multiply
    124,170.57x = 186,255.86 × 54,049.88
  4. Step 4: Simplify right side
    124,170.57x = 10,067,107,077.69
  5. Step 5: Solve for x
    x = 10,067,107,077.69/124,170.57
  6. Step 6: Final answer
    x = 81,074.82

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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.