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Finding the Fourth Proportional to 167,661.72, 231,372.12 and 95,078.37

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Solution

The fourth proportional to 167,661.72, 231,372.12 and 95,078.37 is: 131,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,661.72 : 231,372.12 = 95,078.37 : x
  2. Step 2: Convert to fraction form
    167,661.72/231,372.12 = 95,078.37/x
  3. Step 3: Cross multiply
    167,661.72x = 231,372.12 × 95,078.37
  4. Step 4: Simplify right side
    167,661.72x = 21,998,484,033.04
  5. Step 5: Solve for x
    x = 21,998,484,033.04/167,661.72
  6. Step 6: Final answer
    x = 131,207.55

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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.