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Finding the Fourth Proportional to 167,976.11, 231,805.04 and 91,494.96

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Solution

The fourth proportional to 167,976.11, 231,805.04 and 91,494.96 is: 126,261.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,976.11 : 231,805.04 = 91,494.96 : x
  2. Step 2: Convert to fraction form
    167,976.11/231,805.04 = 91,494.96/x
  3. Step 3: Cross multiply
    167,976.11x = 231,805.04 × 91,494.96
  4. Step 4: Simplify right side
    167,976.11x = 21,208,992,862.60
  5. Step 5: Solve for x
    x = 21,208,992,862.60/167,976.11
  6. Step 6: Final answer
    x = 126,261.96

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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.