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Finding the Fourth Proportional to 167,169.76, 230,694.48 and 91,718.56

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Solution

The fourth proportional to 167,169.76, 230,694.48 and 91,718.56 is: 126,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,169.76 : 230,694.48 = 91,718.56 : x
  2. Step 2: Convert to fraction form
    167,169.76/230,694.48 = 91,718.56/x
  3. Step 3: Cross multiply
    167,169.76x = 230,694.48 × 91,718.56
  4. Step 4: Simplify right side
    167,169.76x = 21,158,965,505.55
  5. Step 5: Solve for x
    x = 21,158,965,505.55/167,169.76
  6. Step 6: Final answer
    x = 126,571.73

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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.