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Finding the Fourth Proportional to 168,058.34, 231,917.51 and 91,577.98

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Solution

The fourth proportional to 168,058.34, 231,917.51 and 91,577.98 is: 126,375.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,058.34 : 231,917.51 = 91,577.98 : x
  2. Step 2: Convert to fraction form
    168,058.34/231,917.51 = 91,577.98/x
  3. Step 3: Cross multiply
    168,058.34x = 231,917.51 × 91,577.98
  4. Step 4: Simplify right side
    168,058.34x = 21,238,535,474.95
  5. Step 5: Solve for x
    x = 21,238,535,474.95/168,058.34
  6. Step 6: Final answer
    x = 126,375.97

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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.