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Finding the Fourth Proportional to 118,443.45, 163,338.92 and 77,546.55

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Solution

The fourth proportional to 118,443.45, 163,338.92 and 77,546.55 is: 106,940.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,443.45 : 163,338.92 = 77,546.55 : x
  2. Step 2: Convert to fraction form
    118,443.45/163,338.92 = 77,546.55/x
  3. Step 3: Cross multiply
    118,443.45x = 163,338.92 × 77,546.55
  4. Step 4: Simplify right side
    118,443.45x = 12,666,369,726.73
  5. Step 5: Solve for x
    x = 12,666,369,726.73/118,443.45
  6. Step 6: Final answer
    x = 106,940.23

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