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Finding the Fourth Proportional to 222,947.80, 334,421.70 and 128,469.40

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Solution

The fourth proportional to 222,947.80, 334,421.70 and 128,469.40 is: 192,704.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,947.80 : 334,421.70 = 128,469.40 : x
  2. Step 2: Convert to fraction form
    222,947.80/334,421.70 = 128,469.40/x
  3. Step 3: Cross multiply
    222,947.80x = 334,421.70 × 128,469.40
  4. Step 4: Simplify right side
    222,947.80x = 42,962,955,145.98
  5. Step 5: Solve for x
    x = 42,962,955,145.98/222,947.80
  6. Step 6: Final answer
    x = 192,704.10

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