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Finding the Fourth Proportional to 81,839.69, 122,745.86 and 22,681.34

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Solution

The fourth proportional to 81,839.69, 122,745.86 and 22,681.34 is: 34,018.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,839.69 : 122,745.86 = 22,681.34 : x
  2. Step 2: Convert to fraction form
    81,839.69/122,745.86 = 22,681.34/x
  3. Step 3: Cross multiply
    81,839.69x = 122,745.86 × 22,681.34
  4. Step 4: Simplify right side
    81,839.69x = 2,784,039,857.12
  5. Step 5: Solve for x
    x = 2,784,039,857.12/81,839.69
  6. Step 6: Final answer
    x = 34,018.21

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