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Finding the Fourth Proportional to 120,105.16, 165,761.58 and 69,116.84

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Solution

The fourth proportional to 120,105.16, 165,761.58 and 69,116.84 is: 95,390.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,105.16 : 165,761.58 = 69,116.84 : x
  2. Step 2: Convert to fraction form
    120,105.16/165,761.58 = 69,116.84/x
  3. Step 3: Cross multiply
    120,105.16x = 165,761.58 × 69,116.84
  4. Step 4: Simplify right side
    120,105.16x = 11,456,916,603.01
  5. Step 5: Solve for x
    x = 11,456,916,603.01/120,105.16
  6. Step 6: Final answer
    x = 95,390.71

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