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Finding the Fourth Proportional to 167,836.64, 231,614.56 and 91,356.02

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Solution

The fourth proportional to 167,836.64, 231,614.56 and 91,356.02 is: 126,071.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,836.64 : 231,614.56 = 91,356.02 : x
  2. Step 2: Convert to fraction form
    167,836.64/231,614.56 = 91,356.02/x
  3. Step 3: Cross multiply
    167,836.64x = 231,614.56 × 91,356.02
  4. Step 4: Simplify right side
    167,836.64x = 21,159,384,375.65
  5. Step 5: Solve for x
    x = 21,159,384,375.65/167,836.64
  6. Step 6: Final answer
    x = 126,071.31

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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.