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Finding the Fourth Proportional to 167,676.91, 231,394.74 and 91,196.00

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Solution

The fourth proportional to 167,676.91, 231,394.74 and 91,196.00 is: 125,850.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,676.91 : 231,394.74 = 91,196.00 : x
  2. Step 2: Convert to fraction form
    167,676.91/231,394.74 = 91,196.00/x
  3. Step 3: Cross multiply
    167,676.91x = 231,394.74 × 91,196.00
  4. Step 4: Simplify right side
    167,676.91x = 21,102,273,959.56
  5. Step 5: Solve for x
    x = 21,102,273,959.56/167,676.91
  6. Step 6: Final answer
    x = 125,850.81

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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.