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Finding the Fourth Proportional to 168,480.88, 252,704.02 and 56,149

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Solution

The fourth proportional to 168,480.88, 252,704.02 and 56,149 is: 84,217.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,480.88 : 252,704.02 = 56,149 : x
  2. Step 2: Convert to fraction form
    168,480.88/252,704.02 = 56,149/x
  3. Step 3: Cross multiply
    168,480.88x = 252,704.02 × 56,149
  4. Step 4: Simplify right side
    168,480.88x = 14,189,078,018.98
  5. Step 5: Solve for x
    x = 14,189,078,018.98/168,480.88
  6. Step 6: Final answer
    x = 84,217.73

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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.