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Finding the Fourth Proportional to 299,867.76, 449,801.46 and 78,251.76

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Solution

The fourth proportional to 299,867.76, 449,801.46 and 78,251.76 is: 117,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,867.76 : 449,801.46 = 78,251.76 : x
  2. Step 2: Convert to fraction form
    299,867.76/449,801.46 = 78,251.76/x
  3. Step 3: Cross multiply
    299,867.76x = 449,801.46 × 78,251.76
  4. Step 4: Simplify right side
    299,867.76x = 35,197,755,895.57
  5. Step 5: Solve for x
    x = 35,197,755,895.57/299,867.76
  6. Step 6: Final answer
    x = 117,377.59

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