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Finding the Fourth Proportional to 67,245.20, 100,900.20 and 47,481.20

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Solution

The fourth proportional to 67,245.20, 100,900.20 and 47,481.20 is: 71,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,245.20 : 100,900.20 = 47,481.20 : x
  2. Step 2: Convert to fraction form
    67,245.20/100,900.20 = 47,481.20/x
  3. Step 3: Cross multiply
    67,245.20x = 100,900.20 × 47,481.20
  4. Step 4: Simplify right side
    67,245.20x = 4,790,862,576.24
  5. Step 5: Solve for x
    x = 4,790,862,576.24/67,245.20
  6. Step 6: Final answer
    x = 71,244.68

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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.