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Finding the Fourth Proportional to 78,672.86, 118,058.49 and 31,925.73

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Solution

The fourth proportional to 78,672.86, 118,058.49 and 31,925.73 is: 47,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,672.86 : 118,058.49 = 31,925.73 : x
  2. Step 2: Convert to fraction form
    78,672.86/118,058.49 = 31,925.73/x
  3. Step 3: Cross multiply
    78,672.86x = 118,058.49 × 31,925.73
  4. Step 4: Simplify right side
    78,672.86x = 3,769,103,475.95
  5. Step 5: Solve for x
    x = 3,769,103,475.95/78,672.86
  6. Step 6: Final answer
    x = 47,908.56

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