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Finding the Fourth Proportional to 87,338.80, 130,883.10 and 49,821.28

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Solution

The fourth proportional to 87,338.80, 130,883.10 and 49,821.28 is: 74,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,338.80 : 130,883.10 = 49,821.28 : x
  2. Step 2: Convert to fraction form
    87,338.80/130,883.10 = 49,821.28/x
  3. Step 3: Cross multiply
    87,338.80x = 130,883.10 × 49,821.28
  4. Step 4: Simplify right side
    87,338.80x = 6,520,763,572.37
  5. Step 5: Solve for x
    x = 6,520,763,572.37/87,338.80
  6. Step 6: Final answer
    x = 74,660.56

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