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Finding the Fourth Proportional to 67,229.80, 100,844.70 and 43,610.20

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Solution

The fourth proportional to 67,229.80, 100,844.70 and 43,610.20 is: 65,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,229.80 : 100,844.70 = 43,610.20 : x
  2. Step 2: Convert to fraction form
    67,229.80/100,844.70 = 43,610.20/x
  3. Step 3: Cross multiply
    67,229.80x = 100,844.70 × 43,610.20
  4. Step 4: Simplify right side
    67,229.80x = 4,397,857,535.94
  5. Step 5: Solve for x
    x = 4,397,857,535.94/67,229.80
  6. Step 6: Final answer
    x = 65,415.30

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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.