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Finding the Fourth Proportional to 264,212.40, 396,318.60 and 123,985.20

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Solution

The fourth proportional to 264,212.40, 396,318.60 and 123,985.20 is: 185,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,212.40 : 396,318.60 = 123,985.20 : x
  2. Step 2: Convert to fraction form
    264,212.40/396,318.60 = 123,985.20/x
  3. Step 3: Cross multiply
    264,212.40x = 396,318.60 × 123,985.20
  4. Step 4: Simplify right side
    264,212.40x = 49,137,640,884.72
  5. Step 5: Solve for x
    x = 49,137,640,884.72/264,212.40
  6. Step 6: Final answer
    x = 185,977.80

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