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Finding the Fourth Proportional to 228,895.20, 343,342.80 and 71,139.60

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Solution

The fourth proportional to 228,895.20, 343,342.80 and 71,139.60 is: 106,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,895.20 : 343,342.80 = 71,139.60 : x
  2. Step 2: Convert to fraction form
    228,895.20/343,342.80 = 71,139.60/x
  3. Step 3: Cross multiply
    228,895.20x = 343,342.80 × 71,139.60
  4. Step 4: Simplify right side
    228,895.20x = 24,425,269,454.88
  5. Step 5: Solve for x
    x = 24,425,269,454.88/228,895.20
  6. Step 6: Final answer
    x = 106,709.40

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