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Finding the Fourth Proportional to 67.81, 101.69 and 43.73

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Solution

The fourth proportional to 67.81, 101.69 and 43.73 is: 65.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.81 : 101.69 = 43.73 : x
  2. Step 2: Convert to fraction form
    67.81/101.69 = 43.73/x
  3. Step 3: Cross multiply
    67.81x = 101.69 × 43.73
  4. Step 4: Simplify right side
    67.81x = 4,446.69
  5. Step 5: Solve for x
    x = 4,446.69/67.81
  6. Step 6: Final answer
    x = 65.58

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