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Finding the Fourth Proportional to 168,328, 252,493.92 and 43,661.44

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Solution

The fourth proportional to 168,328, 252,493.92 and 43,661.44 is: 65,492.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,328 : 252,493.92 = 43,661.44 : x
  2. Step 2: Convert to fraction form
    168,328/252,493.92 = 43,661.44/x
  3. Step 3: Cross multiply
    168,328x = 252,493.92 × 43,661.44
  4. Step 4: Simplify right side
    168,328x = 11,024,248,138.44
  5. Step 5: Solve for x
    x = 11,024,248,138.44/168,328
  6. Step 6: Final answer
    x = 65,492.66

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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.