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Finding the Fourth Proportional to 85,747.48, 128,626.08 and 26,591.56

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Solution

The fourth proportional to 85,747.48, 128,626.08 and 26,591.56 is: 39,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,747.48 : 128,626.08 = 26,591.56 : x
  2. Step 2: Convert to fraction form
    85,747.48/128,626.08 = 26,591.56/x
  3. Step 3: Cross multiply
    85,747.48x = 128,626.08 × 26,591.56
  4. Step 4: Simplify right side
    85,747.48x = 3,420,367,347.80
  5. Step 5: Solve for x
    x = 3,420,367,347.80/85,747.48
  6. Step 6: Final answer
    x = 39,888.84

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