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Finding the Fourth Proportional to 57,742.62, 79,739.85 and 54,597.78

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Solution

The fourth proportional to 57,742.62, 79,739.85 and 54,597.78 is: 75,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.62 : 79,739.85 = 54,597.78 : x
  2. Step 2: Convert to fraction form
    57,742.62/79,739.85 = 54,597.78/x
  3. Step 3: Cross multiply
    57,742.62x = 79,739.85 × 54,597.78
  4. Step 4: Simplify right side
    57,742.62x = 4,353,618,787.53
  5. Step 5: Solve for x
    x = 4,353,618,787.53/57,742.62
  6. Step 6: Final answer
    x = 75,396.97

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