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Finding the Fourth Proportional to 69,138.72, 103,656.24 and 35,814.24

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Solution

The fourth proportional to 69,138.72, 103,656.24 and 35,814.24 is: 53,694.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138.72 : 103,656.24 = 35,814.24 : x
  2. Step 2: Convert to fraction form
    69,138.72/103,656.24 = 35,814.24/x
  3. Step 3: Cross multiply
    69,138.72x = 103,656.24 × 35,814.24
  4. Step 4: Simplify right side
    69,138.72x = 3,712,369,456.86
  5. Step 5: Solve for x
    x = 3,712,369,456.86/69,138.72
  6. Step 6: Final answer
    x = 53,694.51

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