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Finding the Fourth Proportional to 71,563.58, 98,757.96 and 39,732.56

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Solution

The fourth proportional to 71,563.58, 98,757.96 and 39,732.56 is: 54,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,563.58 : 98,757.96 = 39,732.56 : x
  2. Step 2: Convert to fraction form
    71,563.58/98,757.96 = 39,732.56/x
  3. Step 3: Cross multiply
    71,563.58x = 98,757.96 × 39,732.56
  4. Step 4: Simplify right side
    71,563.58x = 3,923,906,571.18
  5. Step 5: Solve for x
    x = 3,923,906,571.18/71,563.58
  6. Step 6: Final answer
    x = 54,831.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.