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Finding the Fourth Proportional to 54,328.80, 81,493.20 and 36,614.10

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Solution

The fourth proportional to 54,328.80, 81,493.20 and 36,614.10 is: 54,921.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,328.80 : 81,493.20 = 36,614.10 : x
  2. Step 2: Convert to fraction form
    54,328.80/81,493.20 = 36,614.10/x
  3. Step 3: Cross multiply
    54,328.80x = 81,493.20 × 36,614.10
  4. Step 4: Simplify right side
    54,328.80x = 2,983,800,174.12
  5. Step 5: Solve for x
    x = 2,983,800,174.12/54,328.80
  6. Step 6: Final answer
    x = 54,921.15

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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.