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Finding the Fourth Proportional to 73,753.76, 110,627.79 and 21,163.24

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Solution

The fourth proportional to 73,753.76, 110,627.79 and 21,163.24 is: 31,744.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,753.76 : 110,627.79 = 21,163.24 : x
  2. Step 2: Convert to fraction form
    73,753.76/110,627.79 = 21,163.24/x
  3. Step 3: Cross multiply
    73,753.76x = 110,627.79 × 21,163.24
  4. Step 4: Simplify right side
    73,753.76x = 2,341,242,470.44
  5. Step 5: Solve for x
    x = 2,341,242,470.44/73,753.76
  6. Step 6: Final answer
    x = 31,744.04

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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.