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Finding the Fourth Proportional to 220,330.80, 330,496.20 and 198,903.60

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Solution

The fourth proportional to 220,330.80, 330,496.20 and 198,903.60 is: 298,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,330.80 : 330,496.20 = 198,903.60 : x
  2. Step 2: Convert to fraction form
    220,330.80/330,496.20 = 198,903.60/x
  3. Step 3: Cross multiply
    220,330.80x = 330,496.20 × 198,903.60
  4. Step 4: Simplify right side
    220,330.80x = 65,736,883,966.32
  5. Step 5: Solve for x
    x = 65,736,883,966.32/220,330.80
  6. Step 6: Final answer
    x = 298,355.40

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