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Finding the Fourth Proportional to 87,497.20, 131,245.80 and 32,114.80

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Solution

The fourth proportional to 87,497.20, 131,245.80 and 32,114.80 is: 48,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,497.20 : 131,245.80 = 32,114.80 : x
  2. Step 2: Convert to fraction form
    87,497.20/131,245.80 = 32,114.80/x
  3. Step 3: Cross multiply
    87,497.20x = 131,245.80 × 32,114.80
  4. Step 4: Simplify right side
    87,497.20x = 4,214,932,617.84
  5. Step 5: Solve for x
    x = 4,214,932,617.84/87,497.20
  6. Step 6: Final answer
    x = 48,172.20

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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.