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Finding the Fourth Proportional to 51,310.80, 76,879.80 and 48,200.40

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Solution

The fourth proportional to 51,310.80, 76,879.80 and 48,200.40 is: 72,219.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,310.80 : 76,879.80 = 48,200.40 : x
  2. Step 2: Convert to fraction form
    51,310.80/76,879.80 = 48,200.40/x
  3. Step 3: Cross multiply
    51,310.80x = 76,879.80 × 48,200.40
  4. Step 4: Simplify right side
    51,310.80x = 3,705,637,111.92
  5. Step 5: Solve for x
    x = 3,705,637,111.92/51,310.80
  6. Step 6: Final answer
    x = 72,219.44

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