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Finding the Fourth Proportional to 166,686, 230,028.84 and 91,232.88

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Solution

The fourth proportional to 166,686, 230,028.84 and 91,232.88 is: 125,902.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,686 : 230,028.84 = 91,232.88 : x
  2. Step 2: Convert to fraction form
    166,686/230,028.84 = 91,232.88/x
  3. Step 3: Cross multiply
    166,686x = 230,028.84 × 91,232.88
  4. Step 4: Simplify right side
    166,686x = 20,986,193,556.26
  5. Step 5: Solve for x
    x = 20,986,193,556.26/166,686
  6. Step 6: Final answer
    x = 125,902.56

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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.