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Finding the Fourth Proportional to 275,894.75, 413,842.13 and 78,902.75

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Solution

The fourth proportional to 275,894.75, 413,842.13 and 78,902.75 is: 118,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,894.75 : 413,842.13 = 78,902.75 : x
  2. Step 2: Convert to fraction form
    275,894.75/413,842.13 = 78,902.75/x
  3. Step 3: Cross multiply
    275,894.75x = 413,842.13 × 78,902.75
  4. Step 4: Simplify right side
    275,894.75x = 32,653,282,122.86
  5. Step 5: Solve for x
    x = 32,653,282,122.86/275,894.75
  6. Step 6: Final answer
    x = 118,354.13

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