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Finding the Fourth Proportional to 76,189.82, 105,193.91 and 47,520.68

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Solution

The fourth proportional to 76,189.82, 105,193.91 and 47,520.68 is: 65,610.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,189.82 : 105,193.91 = 47,520.68 : x
  2. Step 2: Convert to fraction form
    76,189.82/105,193.91 = 47,520.68/x
  3. Step 3: Cross multiply
    76,189.82x = 105,193.91 × 47,520.68
  4. Step 4: Simplify right side
    76,189.82x = 4,998,885,897.46
  5. Step 5: Solve for x
    x = 4,998,885,897.46/76,189.82
  6. Step 6: Final answer
    x = 65,610.94

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