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Finding the Fourth Proportional to 86,033.43, 118,745.11 and 47,806.11

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Solution

The fourth proportional to 86,033.43, 118,745.11 and 47,806.11 is: 65,982.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,033.43 : 118,745.11 = 47,806.11 : x
  2. Step 2: Convert to fraction form
    86,033.43/118,745.11 = 47,806.11/x
  3. Step 3: Cross multiply
    86,033.43x = 118,745.11 × 47,806.11
  4. Step 4: Simplify right side
    86,033.43x = 5,676,741,790.62
  5. Step 5: Solve for x
    x = 5,676,741,790.62/86,033.43
  6. Step 6: Final answer
    x = 65,982.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.