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Finding the Fourth Proportional to 54,336.80, 81,505.20 and 36,622.10

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Solution

The fourth proportional to 54,336.80, 81,505.20 and 36,622.10 is: 54,933.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,336.80 : 81,505.20 = 36,622.10 : x
  2. Step 2: Convert to fraction form
    54,336.80/81,505.20 = 36,622.10/x
  3. Step 3: Cross multiply
    54,336.80x = 81,505.20 × 36,622.10
  4. Step 4: Simplify right side
    54,336.80x = 2,984,891,584.92
  5. Step 5: Solve for x
    x = 2,984,891,584.92/54,336.80
  6. Step 6: Final answer
    x = 54,933.15

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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.