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Finding the Fourth Proportional to 167,755.89, 231,426.85 and 99,734.27

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Solution

The fourth proportional to 167,755.89, 231,426.85 and 99,734.27 is: 137,587.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,755.89 : 231,426.85 = 99,734.27 : x
  2. Step 2: Convert to fraction form
    167,755.89/231,426.85 = 99,734.27/x
  3. Step 3: Cross multiply
    167,755.89x = 231,426.85 × 99,734.27
  4. Step 4: Simplify right side
    167,755.89x = 23,081,187,943.15
  5. Step 5: Solve for x
    x = 23,081,187,943.15/167,755.89
  6. Step 6: Final answer
    x = 137,587.94

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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.