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Finding the Fourth Proportional to 115,993.43, 160,066.09 and 65,692.43

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Solution

The fourth proportional to 115,993.43, 160,066.09 and 65,692.43 is: 90,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,993.43 : 160,066.09 = 65,692.43 : x
  2. Step 2: Convert to fraction form
    115,993.43/160,066.09 = 65,692.43/x
  3. Step 3: Cross multiply
    115,993.43x = 160,066.09 × 65,692.43
  4. Step 4: Simplify right side
    115,993.43x = 10,515,130,412.70
  5. Step 5: Solve for x
    x = 10,515,130,412.70/115,993.43
  6. Step 6: Final answer
    x = 90,652.81

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