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Finding the Fourth Proportional to 113,792.70, 170,689.05 and 78,363.30

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Solution

The fourth proportional to 113,792.70, 170,689.05 and 78,363.30 is: 117,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,792.70 : 170,689.05 = 78,363.30 : x
  2. Step 2: Convert to fraction form
    113,792.70/170,689.05 = 78,363.30/x
  3. Step 3: Cross multiply
    113,792.70x = 170,689.05 × 78,363.30
  4. Step 4: Simplify right side
    113,792.70x = 13,375,757,231.87
  5. Step 5: Solve for x
    x = 13,375,757,231.87/113,792.70
  6. Step 6: Final answer
    x = 117,544.95

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