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Finding the Fourth Proportional to 79,851.67, 119,777.49 and 20,687.34

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Solution

The fourth proportional to 79,851.67, 119,777.49 and 20,687.34 is: 31,031.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,851.67 : 119,777.49 = 20,687.34 : x
  2. Step 2: Convert to fraction form
    79,851.67/119,777.49 = 20,687.34/x
  3. Step 3: Cross multiply
    79,851.67x = 119,777.49 × 20,687.34
  4. Step 4: Simplify right side
    79,851.67x = 2,477,877,659.98
  5. Step 5: Solve for x
    x = 2,477,877,659.98/79,851.67
  6. Step 6: Final answer
    x = 31,031.01

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