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Finding the Fourth Proportional to 268,253.40, 402,380.02 and 68,574.20

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Solution

The fourth proportional to 268,253.40, 402,380.02 and 68,574.20 is: 102,861.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,253.40 : 402,380.02 = 68,574.20 : x
  2. Step 2: Convert to fraction form
    268,253.40/402,380.02 = 68,574.20/x
  3. Step 3: Cross multiply
    268,253.40x = 402,380.02 × 68,574.20
  4. Step 4: Simplify right side
    268,253.40x = 27,592,887,967.48
  5. Step 5: Solve for x
    x = 27,592,887,967.48/268,253.40
  6. Step 6: Final answer
    x = 102,861.28

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