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Finding the Fourth Proportional to 167,396.63, 231,007.34 and 91,945.13

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Solution

The fourth proportional to 167,396.63, 231,007.34 and 91,945.13 is: 126,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,396.63 : 231,007.34 = 91,945.13 : x
  2. Step 2: Convert to fraction form
    167,396.63/231,007.34 = 91,945.13/x
  3. Step 3: Cross multiply
    167,396.63x = 231,007.34 × 91,945.13
  4. Step 4: Simplify right side
    167,396.63x = 21,239,998,982.08
  5. Step 5: Solve for x
    x = 21,239,998,982.08/167,396.63
  6. Step 6: Final answer
    x = 126,884.27

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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.