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Finding the Fourth Proportional to 166,687.29, 230,027.99 and 91,235.25

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Solution

The fourth proportional to 166,687.29, 230,027.99 and 91,235.25 is: 125,904.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,687.29 : 230,027.99 = 91,235.25 : x
  2. Step 2: Convert to fraction form
    166,687.29/230,027.99 = 91,235.25/x
  3. Step 3: Cross multiply
    166,687.29x = 230,027.99 × 91,235.25
  4. Step 4: Simplify right side
    166,687.29x = 20,986,660,718.47
  5. Step 5: Solve for x
    x = 20,986,660,718.47/166,687.29
  6. Step 6: Final answer
    x = 125,904.38

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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.