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Finding the Fourth Proportional to 81,605.96, 122,394.83 and 21,634.82

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Solution

The fourth proportional to 81,605.96, 122,394.83 and 21,634.82 is: 32,448.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,605.96 : 122,394.83 = 21,634.82 : x
  2. Step 2: Convert to fraction form
    81,605.96/122,394.83 = 21,634.82/x
  3. Step 3: Cross multiply
    81,605.96x = 122,394.83 × 21,634.82
  4. Step 4: Simplify right side
    81,605.96x = 2,647,989,395.83
  5. Step 5: Solve for x
    x = 2,647,989,395.83/81,605.96
  6. Step 6: Final answer
    x = 32,448.48

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