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Finding the Fourth Proportional to 192,916.80, 288,986.40 and 109,713.60

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Solution

The fourth proportional to 192,916.80, 288,986.40 and 109,713.60 is: 164,349.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,916.80 : 288,986.40 = 109,713.60 : x
  2. Step 2: Convert to fraction form
    192,916.80/288,986.40 = 109,713.60/x
  3. Step 3: Cross multiply
    192,916.80x = 288,986.40 × 109,713.60
  4. Step 4: Simplify right side
    192,916.80x = 31,705,738,295.04
  5. Step 5: Solve for x
    x = 31,705,738,295.04/192,916.80
  6. Step 6: Final answer
    x = 164,349.29

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