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Finding the Fourth Proportional to 71,806.92, 107,708.84 and 19,216.40

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Solution

The fourth proportional to 71,806.92, 107,708.84 and 19,216.40 is: 28,824.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,806.92 : 107,708.84 = 19,216.40 : x
  2. Step 2: Convert to fraction form
    71,806.92/107,708.84 = 19,216.40/x
  3. Step 3: Cross multiply
    71,806.92x = 107,708.84 × 19,216.40
  4. Step 4: Simplify right side
    71,806.92x = 2,069,776,152.98
  5. Step 5: Solve for x
    x = 2,069,776,152.98/71,806.92
  6. Step 6: Final answer
    x = 28,824.19

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