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Finding the Fourth Proportional to 52,604.20, 78,867.90 and 21,423.40

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Solution

The fourth proportional to 52,604.20, 78,867.90 and 21,423.40 is: 32,119.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,604.20 : 78,867.90 = 21,423.40 : x
  2. Step 2: Convert to fraction form
    52,604.20/78,867.90 = 21,423.40/x
  3. Step 3: Cross multiply
    52,604.20x = 78,867.90 × 21,423.40
  4. Step 4: Simplify right side
    52,604.20x = 1,689,618,568.86
  5. Step 5: Solve for x
    x = 1,689,618,568.86/52,604.20
  6. Step 6: Final answer
    x = 32,119.46

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