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Finding the Fourth Proportional to 79,515.60, 119,273.40 and 74,266.80

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Solution

The fourth proportional to 79,515.60, 119,273.40 and 74,266.80 is: 111,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,515.60 : 119,273.40 = 74,266.80 : x
  2. Step 2: Convert to fraction form
    79,515.60/119,273.40 = 74,266.80/x
  3. Step 3: Cross multiply
    79,515.60x = 119,273.40 × 74,266.80
  4. Step 4: Simplify right side
    79,515.60x = 8,858,053,743.12
  5. Step 5: Solve for x
    x = 8,858,053,743.12/79,515.60
  6. Step 6: Final answer
    x = 111,400.20

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