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Finding the Fourth Proportional to 167,343.38, 230,931.24 and 91,891.88

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Solution

The fourth proportional to 167,343.38, 230,931.24 and 91,891.88 is: 126,809.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,343.38 : 230,931.24 = 91,891.88 : x
  2. Step 2: Convert to fraction form
    167,343.38/230,931.24 = 91,891.88/x
  3. Step 3: Cross multiply
    167,343.38x = 230,931.24 × 91,891.88
  4. Step 4: Simplify right side
    167,343.38x = 21,220,705,334.87
  5. Step 5: Solve for x
    x = 21,220,705,334.87/167,343.38
  6. Step 6: Final answer
    x = 126,809.35

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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.