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Finding the Fourth Proportional to 107,513.20, 161,250.60 and 67,999.60

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Solution

The fourth proportional to 107,513.20, 161,250.60 and 67,999.60 is: 101,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,513.20 : 161,250.60 = 67,999.60 : x
  2. Step 2: Convert to fraction form
    107,513.20/161,250.60 = 67,999.60/x
  3. Step 3: Cross multiply
    107,513.20x = 161,250.60 × 67,999.60
  4. Step 4: Simplify right side
    107,513.20x = 10,964,976,299.76
  5. Step 5: Solve for x
    x = 10,964,976,299.76/107,513.20
  6. Step 6: Final answer
    x = 101,987.26

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