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Finding the Fourth Proportional to 167,773.78, 231,524.88 and 91,290.29

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Solution

The fourth proportional to 167,773.78, 231,524.88 and 91,290.29 is: 125,979.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,773.78 : 231,524.88 = 91,290.29 : x
  2. Step 2: Convert to fraction form
    167,773.78/231,524.88 = 91,290.29/x
  3. Step 3: Cross multiply
    167,773.78x = 231,524.88 × 91,290.29
  4. Step 4: Simplify right side
    167,773.78x = 21,135,973,437.42
  5. Step 5: Solve for x
    x = 21,135,973,437.42/167,773.78
  6. Step 6: Final answer
    x = 125,979.00

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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.