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Finding the Fourth Proportional to 71,104.98, 106,674.99 and 21,184.86

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Solution

The fourth proportional to 71,104.98, 106,674.99 and 21,184.86 is: 31,782.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,104.98 : 106,674.99 = 21,184.86 : x
  2. Step 2: Convert to fraction form
    71,104.98/106,674.99 = 21,184.86/x
  3. Step 3: Cross multiply
    71,104.98x = 106,674.99 × 21,184.86
  4. Step 4: Simplify right side
    71,104.98x = 2,259,894,728.65
  5. Step 5: Solve for x
    x = 2,259,894,728.65/71,104.98
  6. Step 6: Final answer
    x = 31,782.51

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