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Finding the Fourth Proportional to 48,808.80, 73,213.20 and 40,498.20

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Solution

The fourth proportional to 48,808.80, 73,213.20 and 40,498.20 is: 60,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,808.80 : 73,213.20 = 40,498.20 : x
  2. Step 2: Convert to fraction form
    48,808.80/73,213.20 = 40,498.20/x
  3. Step 3: Cross multiply
    48,808.80x = 73,213.20 × 40,498.20
  4. Step 4: Simplify right side
    48,808.80x = 2,965,002,816.24
  5. Step 5: Solve for x
    x = 2,965,002,816.24/48,808.80
  6. Step 6: Final answer
    x = 60,747.30

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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.