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Finding the Fourth Proportional to 123.73, 185.82 and 65.99

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Solution

The fourth proportional to 123.73, 185.82 and 65.99 is: 99.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.73 : 185.82 = 65.99 : x
  2. Step 2: Convert to fraction form
    123.73/185.82 = 65.99/x
  3. Step 3: Cross multiply
    123.73x = 185.82 × 65.99
  4. Step 4: Simplify right side
    123.73x = 12,262.26
  5. Step 5: Solve for x
    x = 12,262.26/123.73
  6. Step 6: Final answer
    x = 99.11

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