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Finding the Fourth Proportional to 115,794.90, 159,799.83 and 64,807.20

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Solution

The fourth proportional to 115,794.90, 159,799.83 and 64,807.20 is: 89,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,794.90 : 159,799.83 = 64,807.20 : x
  2. Step 2: Convert to fraction form
    115,794.90/159,799.83 = 64,807.20/x
  3. Step 3: Cross multiply
    115,794.90x = 159,799.83 × 64,807.20
  4. Step 4: Simplify right side
    115,794.90x = 10,356,179,542.78
  5. Step 5: Solve for x
    x = 10,356,179,542.78/115,794.90
  6. Step 6: Final answer
    x = 89,435.54

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