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Finding the Fourth Proportional to 81,993.65, 123,021.45 and 32,109.39

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Solution

The fourth proportional to 81,993.65, 123,021.45 and 32,109.39 is: 48,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,993.65 : 123,021.45 = 32,109.39 : x
  2. Step 2: Convert to fraction form
    81,993.65/123,021.45 = 32,109.39/x
  3. Step 3: Cross multiply
    81,993.65x = 123,021.45 × 32,109.39
  4. Step 4: Simplify right side
    81,993.65x = 3,950,143,716.42
  5. Step 5: Solve for x
    x = 3,950,143,716.42/81,993.65
  6. Step 6: Final answer
    x = 48,176.22

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