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Finding the Fourth Proportional to 325,872.80, 488,452.80 and 115,402.40

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Solution

The fourth proportional to 325,872.80, 488,452.80 and 115,402.40 is: 172,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,872.80 : 488,452.80 = 115,402.40 : x
  2. Step 2: Convert to fraction form
    325,872.80/488,452.80 = 115,402.40/x
  3. Step 3: Cross multiply
    325,872.80x = 488,452.80 × 115,402.40
  4. Step 4: Simplify right side
    325,872.80x = 56,368,625,406.72
  5. Step 5: Solve for x
    x = 56,368,625,406.72/325,872.80
  6. Step 6: Final answer
    x = 172,977.39

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