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Finding the Fourth Proportional to 78,461.72, 108,277.25 and 42,651.73

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Solution

The fourth proportional to 78,461.72, 108,277.25 and 42,651.73 is: 58,859.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,461.72 : 108,277.25 = 42,651.73 : x
  2. Step 2: Convert to fraction form
    78,461.72/108,277.25 = 42,651.73/x
  3. Step 3: Cross multiply
    78,461.72x = 108,277.25 × 42,651.73
  4. Step 4: Simplify right side
    78,461.72x = 4,618,212,032.14
  5. Step 5: Solve for x
    x = 4,618,212,032.14/78,461.72
  6. Step 6: Final answer
    x = 58,859.43

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