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Finding the Fourth Proportional to 111.88, 167.82 and 30.73

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Solution

The fourth proportional to 111.88, 167.82 and 30.73 is: 46.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.88 : 167.82 = 30.73 : x
  2. Step 2: Convert to fraction form
    111.88/167.82 = 30.73/x
  3. Step 3: Cross multiply
    111.88x = 167.82 × 30.73
  4. Step 4: Simplify right side
    111.88x = 5,157.06
  5. Step 5: Solve for x
    x = 5,157.06/111.88
  6. Step 6: Final answer
    x = 46.09

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