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Finding the Fourth Proportional to 66,209.20, 99,314.88 and 16,289.44

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Solution

The fourth proportional to 66,209.20, 99,314.88 and 16,289.44 is: 24,434.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,209.20 : 99,314.88 = 16,289.44 : x
  2. Step 2: Convert to fraction form
    66,209.20/99,314.88 = 16,289.44/x
  3. Step 3: Cross multiply
    66,209.20x = 99,314.88 × 16,289.44
  4. Step 4: Simplify right side
    66,209.20x = 1,617,783,778.87
  5. Step 5: Solve for x
    x = 1,617,783,778.87/66,209.20
  6. Step 6: Final answer
    x = 24,434.43

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