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Finding the Fourth Proportional to 109,743.80, 164,615.70 and 75,918.20

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Solution

The fourth proportional to 109,743.80, 164,615.70 and 75,918.20 is: 113,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,743.80 : 164,615.70 = 75,918.20 : x
  2. Step 2: Convert to fraction form
    109,743.80/164,615.70 = 75,918.20/x
  3. Step 3: Cross multiply
    109,743.80x = 164,615.70 × 75,918.20
  4. Step 4: Simplify right side
    109,743.80x = 12,497,327,635.74
  5. Step 5: Solve for x
    x = 12,497,327,635.74/109,743.80
  6. Step 6: Final answer
    x = 113,877.30

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