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Finding the Fourth Proportional to 262,423.20, 393,634.80 and 72,883.20

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Solution

The fourth proportional to 262,423.20, 393,634.80 and 72,883.20 is: 109,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,423.20 : 393,634.80 = 72,883.20 : x
  2. Step 2: Convert to fraction form
    262,423.20/393,634.80 = 72,883.20/x
  3. Step 3: Cross multiply
    262,423.20x = 393,634.80 × 72,883.20
  4. Step 4: Simplify right side
    262,423.20x = 28,689,363,855.36
  5. Step 5: Solve for x
    x = 28,689,363,855.36/262,423.20
  6. Step 6: Final answer
    x = 109,324.80

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