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Finding the Fourth Proportional to 167,455.74, 231,087.96 and 90,974.22

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Solution

The fourth proportional to 167,455.74, 231,087.96 and 90,974.22 is: 125,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,455.74 : 231,087.96 = 90,974.22 : x
  2. Step 2: Convert to fraction form
    167,455.74/231,087.96 = 90,974.22/x
  3. Step 3: Cross multiply
    167,455.74x = 231,087.96 × 90,974.22
  4. Step 4: Simplify right side
    167,455.74x = 21,023,046,912.39
  5. Step 5: Solve for x
    x = 21,023,046,912.39/167,455.74
  6. Step 6: Final answer
    x = 125,543.90

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1.5x scale

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.