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Finding the Fourth Proportional to 82.61, 123.82 and 41.94

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Solution

The fourth proportional to 82.61, 123.82 and 41.94 is: 62.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.61 : 123.82 = 41.94 : x
  2. Step 2: Convert to fraction form
    82.61/123.82 = 41.94/x
  3. Step 3: Cross multiply
    82.61x = 123.82 × 41.94
  4. Step 4: Simplify right side
    82.61x = 5,193.01
  5. Step 5: Solve for x
    x = 5,193.01/82.61
  6. Step 6: Final answer
    x = 62.86

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