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Finding the Fourth Proportional to 8,747,999.80, 12,218,856.20 and 8,747,999.80

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Solution

The fourth proportional to 8,747,999.80, 12,218,856.20 and 8,747,999.80 is: 12,218,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747,999.80 : 12,218,856.20 = 8,747,999.80 : x
  2. Step 2: Convert to fraction form
    8,747,999.80/12,218,856.20 = 8,747,999.80/x
  3. Step 3: Cross multiply
    8,747,999.80x = 12,218,856.20 × 8,747,999.80
  4. Step 4: Simplify right side
    8,747,999.80x = 106,890,551,593,828.77
  5. Step 5: Solve for x
    x = 106,890,551,593,828.77/8,747,999.80
  6. Step 6: Final answer
    x = 12,218,856.20

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