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Finding the Fourth Proportional to 82,812.70, 124,109.70 and 73,408.60

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Solution

The fourth proportional to 82,812.70, 124,109.70 and 73,408.60 is: 110,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,812.70 : 124,109.70 = 73,408.60 : x
  2. Step 2: Convert to fraction form
    82,812.70/124,109.70 = 73,408.60/x
  3. Step 3: Cross multiply
    82,812.70x = 124,109.70 × 73,408.60
  4. Step 4: Simplify right side
    82,812.70x = 9,110,719,323.42
  5. Step 5: Solve for x
    x = 9,110,719,323.42/82,812.70
  6. Step 6: Final answer
    x = 110,015.97

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