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Finding the Fourth Proportional to 71,893.26, 99,202.32 and 40,847.34

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Solution

The fourth proportional to 71,893.26, 99,202.32 and 40,847.34 is: 56,363.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,893.26 : 99,202.32 = 40,847.34 : x
  2. Step 2: Convert to fraction form
    71,893.26/99,202.32 = 40,847.34/x
  3. Step 3: Cross multiply
    71,893.26x = 99,202.32 × 40,847.34
  4. Step 4: Simplify right side
    71,893.26x = 4,052,150,893.83
  5. Step 5: Solve for x
    x = 4,052,150,893.83/71,893.26
  6. Step 6: Final answer
    x = 56,363.43

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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.