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Finding the Fourth Proportional to 70,826.62, 106,215.17 and 20,893.46

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Solution

The fourth proportional to 70,826.62, 106,215.17 and 20,893.46 is: 31,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,826.62 : 106,215.17 = 20,893.46 : x
  2. Step 2: Convert to fraction form
    70,826.62/106,215.17 = 20,893.46/x
  3. Step 3: Cross multiply
    70,826.62x = 106,215.17 × 20,893.46
  4. Step 4: Simplify right side
    70,826.62x = 2,219,202,301.32
  5. Step 5: Solve for x
    x = 2,219,202,301.32/70,826.62
  6. Step 6: Final answer
    x = 31,332.89

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