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Finding the Fourth Proportional to 76,847.28, 115,301.64 and 27,603.12

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Solution

The fourth proportional to 76,847.28, 115,301.64 and 27,603.12 is: 41,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,847.28 : 115,301.64 = 27,603.12 : x
  2. Step 2: Convert to fraction form
    76,847.28/115,301.64 = 27,603.12/x
  3. Step 3: Cross multiply
    76,847.28x = 115,301.64 × 27,603.12
  4. Step 4: Simplify right side
    76,847.28x = 3,182,685,005.12
  5. Step 5: Solve for x
    x = 3,182,685,005.12/76,847.28
  6. Step 6: Final answer
    x = 41,415.71

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