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Finding the Fourth Proportional to 72,643.44, 100,255.24 and 48,819.76

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Solution

The fourth proportional to 72,643.44, 100,255.24 and 48,819.76 is: 67,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,643.44 : 100,255.24 = 48,819.76 : x
  2. Step 2: Convert to fraction form
    72,643.44/100,255.24 = 48,819.76/x
  3. Step 3: Cross multiply
    72,643.44x = 100,255.24 × 48,819.76
  4. Step 4: Simplify right side
    72,643.44x = 4,894,436,755.54
  5. Step 5: Solve for x
    x = 4,894,436,755.54/72,643.44
  6. Step 6: Final answer
    x = 67,376.17

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