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Finding the Fourth Proportional to 84,900.78, 117,158.10 and 48,604.08

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Solution

The fourth proportional to 84,900.78, 117,158.10 and 48,604.08 is: 67,070.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,900.78 : 117,158.10 = 48,604.08 : x
  2. Step 2: Convert to fraction form
    84,900.78/117,158.10 = 48,604.08/x
  3. Step 3: Cross multiply
    84,900.78x = 117,158.10 × 48,604.08
  4. Step 4: Simplify right side
    84,900.78x = 5,694,361,665.05
  5. Step 5: Solve for x
    x = 5,694,361,665.05/84,900.78
  6. Step 6: Final answer
    x = 67,070.78

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