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Finding the Fourth Proportional to 108,563.77, 162,861.11 and 33,690.38

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Solution

The fourth proportional to 108,563.77, 162,861.11 and 33,690.38 is: 50,540.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,563.77 : 162,861.11 = 33,690.38 : x
  2. Step 2: Convert to fraction form
    108,563.77/162,861.11 = 33,690.38/x
  3. Step 3: Cross multiply
    108,563.77x = 162,861.11 × 33,690.38
  4. Step 4: Simplify right side
    108,563.77x = 5,486,852,514.67
  5. Step 5: Solve for x
    x = 5,486,852,514.67/108,563.77
  6. Step 6: Final answer
    x = 50,540.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.