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Finding the Fourth Proportional to 160,405.78, 221,415.30 and 92,449.90

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Solution

The fourth proportional to 160,405.78, 221,415.30 and 92,449.90 is: 127,612.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,405.78 : 221,415.30 = 92,449.90 : x
  2. Step 2: Convert to fraction form
    160,405.78/221,415.30 = 92,449.90/x
  3. Step 3: Cross multiply
    160,405.78x = 221,415.30 × 92,449.90
  4. Step 4: Simplify right side
    160,405.78x = 20,469,822,343.47
  5. Step 5: Solve for x
    x = 20,469,822,343.47/160,405.78
  6. Step 6: Final answer
    x = 127,612.75

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