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Finding the Fourth Proportional to 168,682.30, 253,105.90 and 73,899.54

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Solution

The fourth proportional to 168,682.30, 253,105.90 and 73,899.54 is: 110,885.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,682.30 : 253,105.90 = 73,899.54 : x
  2. Step 2: Convert to fraction form
    168,682.30/253,105.90 = 73,899.54/x
  3. Step 3: Cross multiply
    168,682.30x = 253,105.90 × 73,899.54
  4. Step 4: Simplify right side
    168,682.30x = 18,704,409,396.54
  5. Step 5: Solve for x
    x = 18,704,409,396.54/168,682.30
  6. Step 6: Final answer
    x = 110,885.43

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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.