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Finding the Fourth Proportional to 78,916.25, 108,903.78 and 43,106.27

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Solution

The fourth proportional to 78,916.25, 108,903.78 and 43,106.27 is: 59,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,916.25 : 108,903.78 = 43,106.27 : x
  2. Step 2: Convert to fraction form
    78,916.25/108,903.78 = 43,106.27/x
  3. Step 3: Cross multiply
    78,916.25x = 108,903.78 × 43,106.27
  4. Step 4: Simplify right side
    78,916.25x = 4,694,435,744.70
  5. Step 5: Solve for x
    x = 4,694,435,744.70/78,916.25
  6. Step 6: Final answer
    x = 59,486.30

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