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Finding the Fourth Proportional to 167,442.88, 231,076.48 and 91,992.96

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Solution

The fourth proportional to 167,442.88, 231,076.48 and 91,992.96 is: 126,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,442.88 : 231,076.48 = 91,992.96 : x
  2. Step 2: Convert to fraction form
    167,442.88/231,076.48 = 91,992.96/x
  3. Step 3: Cross multiply
    167,442.88x = 231,076.48 × 91,992.96
  4. Step 4: Simplify right side
    167,442.88x = 21,257,409,381.58
  5. Step 5: Solve for x
    x = 21,257,409,381.58/167,442.88
  6. Step 6: Final answer
    x = 126,953.20

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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.