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Finding the Fourth Proportional to 219,888.40, 329,832.60 and 206,766.40

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Solution

The fourth proportional to 219,888.40, 329,832.60 and 206,766.40 is: 310,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,888.40 : 329,832.60 = 206,766.40 : x
  2. Step 2: Convert to fraction form
    219,888.40/329,832.60 = 206,766.40/x
  3. Step 3: Cross multiply
    219,888.40x = 329,832.60 × 206,766.40
  4. Step 4: Simplify right side
    219,888.40x = 68,198,299,304.64
  5. Step 5: Solve for x
    x = 68,198,299,304.64/219,888.40
  6. Step 6: Final answer
    x = 310,149.60

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