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Finding the Fourth Proportional to 198,439.97, 297,700.95 and 65,328.21

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Solution

The fourth proportional to 198,439.97, 297,700.95 and 65,328.21 is: 98,005.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,439.97 : 297,700.95 = 65,328.21 : x
  2. Step 2: Convert to fraction form
    198,439.97/297,700.95 = 65,328.21/x
  3. Step 3: Cross multiply
    198,439.97x = 297,700.95 × 65,328.21
  4. Step 4: Simplify right side
    198,439.97x = 19,448,270,178.80
  5. Step 5: Solve for x
    x = 19,448,270,178.80/198,439.97
  6. Step 6: Final answer
    x = 98,005.81

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