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Finding the Fourth Proportional to 80,661.74, 120,955.59 and 47,397.44

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Solution

The fourth proportional to 80,661.74, 120,955.59 and 47,397.44 is: 71,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,661.74 : 120,955.59 = 47,397.44 : x
  2. Step 2: Convert to fraction form
    80,661.74/120,955.59 = 47,397.44/x
  3. Step 3: Cross multiply
    80,661.74x = 120,955.59 × 47,397.44
  4. Step 4: Simplify right side
    80,661.74x = 5,732,985,319.69
  5. Step 5: Solve for x
    x = 5,732,985,319.69/80,661.74
  6. Step 6: Final answer
    x = 71,074.41

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