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Finding the Fourth Proportional to 110,898.70, 166,348.05 and 81,374.20

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Solution

The fourth proportional to 110,898.70, 166,348.05 and 81,374.20 is: 122,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,898.70 : 166,348.05 = 81,374.20 : x
  2. Step 2: Convert to fraction form
    110,898.70/166,348.05 = 81,374.20/x
  3. Step 3: Cross multiply
    110,898.70x = 166,348.05 × 81,374.20
  4. Step 4: Simplify right side
    110,898.70x = 13,536,439,490.31
  5. Step 5: Solve for x
    x = 13,536,439,490.31/110,898.70
  6. Step 6: Final answer
    x = 122,061.30

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