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Finding the Fourth Proportional to 54,610.56, 81,915.84 and 15,167.70

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Solution

The fourth proportional to 54,610.56, 81,915.84 and 15,167.70 is: 22,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,610.56 : 81,915.84 = 15,167.70 : x
  2. Step 2: Convert to fraction form
    54,610.56/81,915.84 = 15,167.70/x
  3. Step 3: Cross multiply
    54,610.56x = 81,915.84 × 15,167.70
  4. Step 4: Simplify right side
    54,610.56x = 1,242,474,886.37
  5. Step 5: Solve for x
    x = 1,242,474,886.37/54,610.56
  6. Step 6: Final answer
    x = 22,751.55

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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.