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Finding the Fourth Proportional to 70,664.40, 105,942.60 and 35,629.20

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Solution

The fourth proportional to 70,664.40, 105,942.60 and 35,629.20 is: 53,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,664.40 : 105,942.60 = 35,629.20 : x
  2. Step 2: Convert to fraction form
    70,664.40/105,942.60 = 35,629.20/x
  3. Step 3: Cross multiply
    70,664.40x = 105,942.60 × 35,629.20
  4. Step 4: Simplify right side
    70,664.40x = 3,774,650,083.92
  5. Step 5: Solve for x
    x = 3,774,650,083.92/70,664.40
  6. Step 6: Final answer
    x = 53,416.57

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