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Finding the Fourth Proportional to 167,978.28, 231,791.94 and 92,522.28

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Solution

The fourth proportional to 167,978.28, 231,791.94 and 92,522.28 is: 127,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,978.28 : 231,791.94 = 92,522.28 : x
  2. Step 2: Convert to fraction form
    167,978.28/231,791.94 = 92,522.28/x
  3. Step 3: Cross multiply
    167,978.28x = 231,791.94 × 92,522.28
  4. Step 4: Simplify right side
    167,978.28x = 21,445,918,774.42
  5. Step 5: Solve for x
    x = 21,445,918,774.42/167,978.28
  6. Step 6: Final answer
    x = 127,670.78

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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.