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Finding the Fourth Proportional to 71,836.56, 99,129.72 and 41,619.40

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Solution

The fourth proportional to 71,836.56, 99,129.72 and 41,619.40 is: 57,432.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,836.56 : 99,129.72 = 41,619.40 : x
  2. Step 2: Convert to fraction form
    71,836.56/99,129.72 = 41,619.40/x
  3. Step 3: Cross multiply
    71,836.56x = 99,129.72 × 41,619.40
  4. Step 4: Simplify right side
    71,836.56x = 4,125,719,468.57
  5. Step 5: Solve for x
    x = 4,125,719,468.57/71,836.56
  6. Step 6: Final answer
    x = 57,432.03

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