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Finding the Fourth Proportional to 40,161.78, 55,423.67 and 22,257.18

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Solution

The fourth proportional to 40,161.78, 55,423.67 and 22,257.18 is: 30,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,161.78 : 55,423.67 = 22,257.18 : x
  2. Step 2: Convert to fraction form
    40,161.78/55,423.67 = 22,257.18/x
  3. Step 3: Cross multiply
    40,161.78x = 55,423.67 × 22,257.18
  4. Step 4: Simplify right side
    40,161.78x = 1,233,574,488.16
  5. Step 5: Solve for x
    x = 1,233,574,488.16/40,161.78
  6. Step 6: Final answer
    x = 30,715.13

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