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Finding the Fourth Proportional to 82.29, 123.34 and 61.94

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Solution

The fourth proportional to 82.29, 123.34 and 61.94 is: 92.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.29 : 123.34 = 61.94 : x
  2. Step 2: Convert to fraction form
    82.29/123.34 = 61.94/x
  3. Step 3: Cross multiply
    82.29x = 123.34 × 61.94
  4. Step 4: Simplify right side
    82.29x = 7,638.75
  5. Step 5: Solve for x
    x = 7,638.75/82.29
  6. Step 6: Final answer
    x = 92.83

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