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Finding the Fourth Proportional to 68,140.40, 102,016.20 and 60,364.40

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Solution

The fourth proportional to 68,140.40, 102,016.20 and 60,364.40 is: 90,374.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,140.40 : 102,016.20 = 60,364.40 : x
  2. Step 2: Convert to fraction form
    68,140.40/102,016.20 = 60,364.40/x
  3. Step 3: Cross multiply
    68,140.40x = 102,016.20 × 60,364.40
  4. Step 4: Simplify right side
    68,140.40x = 6,158,146,703.28
  5. Step 5: Solve for x
    x = 6,158,146,703.28/68,140.40
  6. Step 6: Final answer
    x = 90,374.38

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