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Finding the Fourth Proportional to 167,722.68, 231,461.64 and 91,246.54

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Solution

The fourth proportional to 167,722.68, 231,461.64 and 91,246.54 is: 125,922.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,722.68 : 231,461.64 = 91,246.54 : x
  2. Step 2: Convert to fraction form
    167,722.68/231,461.64 = 91,246.54/x
  3. Step 3: Cross multiply
    167,722.68x = 231,461.64 × 91,246.54
  4. Step 4: Simplify right side
    167,722.68x = 21,120,073,792.73
  5. Step 5: Solve for x
    x = 21,120,073,792.73/167,722.68
  6. Step 6: Final answer
    x = 125,922.59

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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.