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Finding the Fourth Proportional to 103,743.40, 155,615.10 and 92,662.60

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Solution

The fourth proportional to 103,743.40, 155,615.10 and 92,662.60 is: 138,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,743.40 : 155,615.10 = 92,662.60 : x
  2. Step 2: Convert to fraction form
    103,743.40/155,615.10 = 92,662.60/x
  3. Step 3: Cross multiply
    103,743.40x = 155,615.10 × 92,662.60
  4. Step 4: Simplify right side
    103,743.40x = 14,419,699,765.26
  5. Step 5: Solve for x
    x = 14,419,699,765.26/103,743.40
  6. Step 6: Final answer
    x = 138,993.90

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