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Finding the Fourth Proportional to 75,877.40, 113,556.90 and 66,546.20

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Solution

The fourth proportional to 75,877.40, 113,556.90 and 66,546.20 is: 99,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,877.40 : 113,556.90 = 66,546.20 : x
  2. Step 2: Convert to fraction form
    75,877.40/113,556.90 = 66,546.20/x
  3. Step 3: Cross multiply
    75,877.40x = 113,556.90 × 66,546.20
  4. Step 4: Simplify right side
    75,877.40x = 7,556,780,178.78
  5. Step 5: Solve for x
    x = 7,556,780,178.78/75,877.40
  6. Step 6: Final answer
    x = 99,591.98

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