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Finding the Fourth Proportional to 67,049.88, 100,589.22 and 57,631.20

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Solution

The fourth proportional to 67,049.88, 100,589.22 and 57,631.20 is: 86,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,049.88 : 100,589.22 = 57,631.20 : x
  2. Step 2: Convert to fraction form
    67,049.88/100,589.22 = 57,631.20/x
  3. Step 3: Cross multiply
    67,049.88x = 100,589.22 × 57,631.20
  4. Step 4: Simplify right side
    67,049.88x = 5,797,077,455.66
  5. Step 5: Solve for x
    x = 5,797,077,455.66/67,049.88
  6. Step 6: Final answer
    x = 86,459.18

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1.5x scale

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.