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Finding the Fourth Proportional to 54,245.52, 81,382.95 and 49,040.46

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Solution

The fourth proportional to 54,245.52, 81,382.95 and 49,040.46 is: 73,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,245.52 : 81,382.95 = 49,040.46 : x
  2. Step 2: Convert to fraction form
    54,245.52/81,382.95 = 49,040.46/x
  3. Step 3: Cross multiply
    54,245.52x = 81,382.95 × 49,040.46
  4. Step 4: Simplify right side
    54,245.52x = 3,991,057,304.16
  5. Step 5: Solve for x
    x = 3,991,057,304.16/54,245.52
  6. Step 6: Final answer
    x = 73,573.95

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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.