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Finding the Fourth Proportional to 51,190.60, 76,850.70 and 47,702.20

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Solution

The fourth proportional to 51,190.60, 76,850.70 and 47,702.20 is: 71,613.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,190.60 : 76,850.70 = 47,702.20 : x
  2. Step 2: Convert to fraction form
    51,190.60/76,850.70 = 47,702.20/x
  3. Step 3: Cross multiply
    51,190.60x = 76,850.70 × 47,702.20
  4. Step 4: Simplify right side
    51,190.60x = 3,665,947,461.54
  5. Step 5: Solve for x
    x = 3,665,947,461.54/51,190.60
  6. Step 6: Final answer
    x = 71,613.68

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