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Finding the Fourth Proportional to 73,644.80, 110,272.80 and 57,963.20

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Solution

The fourth proportional to 73,644.80, 110,272.80 and 57,963.20 is: 86,791.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,644.80 : 110,272.80 = 57,963.20 : x
  2. Step 2: Convert to fraction form
    73,644.80/110,272.80 = 57,963.20/x
  3. Step 3: Cross multiply
    73,644.80x = 110,272.80 × 57,963.20
  4. Step 4: Simplify right side
    73,644.80x = 6,391,764,360.96
  5. Step 5: Solve for x
    x = 6,391,764,360.96/73,644.80
  6. Step 6: Final answer
    x = 86,791.79

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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.