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Finding the Fourth Proportional to 111.83, 167.77 and 30.68

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Solution

The fourth proportional to 111.83, 167.77 and 30.68 is: 46.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.83 : 167.77 = 30.68 : x
  2. Step 2: Convert to fraction form
    111.83/167.77 = 30.68/x
  3. Step 3: Cross multiply
    111.83x = 167.77 × 30.68
  4. Step 4: Simplify right side
    111.83x = 5,147.01
  5. Step 5: Solve for x
    x = 5,147.01/111.83
  6. Step 6: Final answer
    x = 46.03

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