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Finding the Fourth Proportional to 71,293.66, 98,361.15 and 41,078.20

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Solution

The fourth proportional to 71,293.66, 98,361.15 and 41,078.20 is: 56,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,293.66 : 98,361.15 = 41,078.20 : x
  2. Step 2: Convert to fraction form
    71,293.66/98,361.15 = 41,078.20/x
  3. Step 3: Cross multiply
    71,293.66x = 98,361.15 × 41,078.20
  4. Step 4: Simplify right side
    71,293.66x = 4,040,498,991.93
  5. Step 5: Solve for x
    x = 4,040,498,991.93/71,293.66
  6. Step 6: Final answer
    x = 56,674.03

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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.