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Finding the Fourth Proportional to 269,403.90, 404,091.20 and 82,415.40

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Solution

The fourth proportional to 269,403.90, 404,091.20 and 82,415.40 is: 123,618.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,403.90 : 404,091.20 = 82,415.40 : x
  2. Step 2: Convert to fraction form
    269,403.90/404,091.20 = 82,415.40/x
  3. Step 3: Cross multiply
    269,403.90x = 404,091.20 × 82,415.40
  4. Step 4: Simplify right side
    269,403.90x = 33,303,337,884.48
  5. Step 5: Solve for x
    x = 33,303,337,884.48/269,403.90
  6. Step 6: Final answer
    x = 123,618.62

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