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Finding the Fourth Proportional to 78,881.60, 118,279.20 and 32,081.60

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Solution

The fourth proportional to 78,881.60, 118,279.20 and 32,081.60 is: 48,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,881.60 : 118,279.20 = 32,081.60 : x
  2. Step 2: Convert to fraction form
    78,881.60/118,279.20 = 32,081.60/x
  3. Step 3: Cross multiply
    78,881.60x = 118,279.20 × 32,081.60
  4. Step 4: Simplify right side
    78,881.60x = 3,794,585,982.72
  5. Step 5: Solve for x
    x = 3,794,585,982.72/78,881.60
  6. Step 6: Final answer
    x = 48,104.83

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