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Finding the Fourth Proportional to 120,709.12, 166,576.51 and 66,996.40

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Solution

The fourth proportional to 120,709.12, 166,576.51 and 66,996.40 is: 92,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,709.12 : 166,576.51 = 66,996.40 : x
  2. Step 2: Convert to fraction form
    120,709.12/166,576.51 = 66,996.40/x
  3. Step 3: Cross multiply
    120,709.12x = 166,576.51 × 66,996.40
  4. Step 4: Simplify right side
    120,709.12x = 11,160,026,494.56
  5. Step 5: Solve for x
    x = 11,160,026,494.56/120,709.12
  6. Step 6: Final answer
    x = 92,453.88

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