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Finding the Fourth Proportional to 167,410.39, 231,028.01 and 90,930.97

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Solution

The fourth proportional to 167,410.39, 231,028.01 and 90,930.97 is: 125,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,410.39 : 231,028.01 = 90,930.97 : x
  2. Step 2: Convert to fraction form
    167,410.39/231,028.01 = 90,930.97/x
  3. Step 3: Cross multiply
    167,410.39x = 231,028.01 × 90,930.97
  4. Step 4: Simplify right side
    167,410.39x = 21,007,601,046.47
  5. Step 5: Solve for x
    x = 21,007,601,046.47/167,410.39
  6. Step 6: Final answer
    x = 125,485.65

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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.