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Finding the Fourth Proportional to 77,572.70, 107,046.93 and 47,408.48

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Solution

The fourth proportional to 77,572.70, 107,046.93 and 47,408.48 is: 65,421.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,572.70 : 107,046.93 = 47,408.48 : x
  2. Step 2: Convert to fraction form
    77,572.70/107,046.93 = 47,408.48/x
  3. Step 3: Cross multiply
    77,572.70x = 107,046.93 × 47,408.48
  4. Step 4: Simplify right side
    77,572.70x = 5,074,932,239.97
  5. Step 5: Solve for x
    x = 5,074,932,239.97/77,572.70
  6. Step 6: Final answer
    x = 65,421.63

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