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Finding the Fourth Proportional to 205,856.80, 308,785.20 and 192,032.80

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Solution

The fourth proportional to 205,856.80, 308,785.20 and 192,032.80 is: 288,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,856.80 : 308,785.20 = 192,032.80 : x
  2. Step 2: Convert to fraction form
    205,856.80/308,785.20 = 192,032.80/x
  3. Step 3: Cross multiply
    205,856.80x = 308,785.20 × 192,032.80
  4. Step 4: Simplify right side
    205,856.80x = 59,296,886,554.56
  5. Step 5: Solve for x
    x = 59,296,886,554.56/205,856.80
  6. Step 6: Final answer
    x = 288,049.20

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