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Finding the Fourth Proportional to 83,608.62, 115,372.26 and 49,611.27

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Solution

The fourth proportional to 83,608.62, 115,372.26 and 49,611.27 is: 68,459.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,608.62 : 115,372.26 = 49,611.27 : x
  2. Step 2: Convert to fraction form
    83,608.62/115,372.26 = 49,611.27/x
  3. Step 3: Cross multiply
    83,608.62x = 115,372.26 × 49,611.27
  4. Step 4: Simplify right side
    83,608.62x = 5,723,764,341.37
  5. Step 5: Solve for x
    x = 5,723,764,341.37/83,608.62
  6. Step 6: Final answer
    x = 68,459.02

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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.