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Finding the Fourth Proportional to 325,715.20, 488,621.40 and 115,336.60

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Solution

The fourth proportional to 325,715.20, 488,621.40 and 115,336.60 is: 173,022.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,715.20 : 488,621.40 = 115,336.60 : x
  2. Step 2: Convert to fraction form
    325,715.20/488,621.40 = 115,336.60/x
  3. Step 3: Cross multiply
    325,715.20x = 488,621.40 × 115,336.60
  4. Step 4: Simplify right side
    325,715.20x = 56,355,930,963.24
  5. Step 5: Solve for x
    x = 56,355,930,963.24/325,715.20
  6. Step 6: Final answer
    x = 173,022.11

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