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Finding the Fourth Proportional to 167,371.88, 230,975.01 and 91,920.38

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Solution

The fourth proportional to 167,371.88, 230,975.01 and 91,920.38 is: 126,851.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,371.88 : 230,975.01 = 91,920.38 : x
  2. Step 2: Convert to fraction form
    167,371.88/230,975.01 = 91,920.38/x
  3. Step 3: Cross multiply
    167,371.88x = 230,975.01 × 91,920.38
  4. Step 4: Simplify right side
    167,371.88x = 21,231,309,534.83
  5. Step 5: Solve for x
    x = 21,231,309,534.83/167,371.88
  6. Step 6: Final answer
    x = 126,851.12

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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.