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Finding the Fourth Proportional to 331,421, 496,205.22 and 179,072.36

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Solution

The fourth proportional to 331,421, 496,205.22 and 179,072.36 is: 268,108.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,421 : 496,205.22 = 179,072.36 : x
  2. Step 2: Convert to fraction form
    331,421/496,205.22 = 179,072.36/x
  3. Step 3: Cross multiply
    331,421x = 496,205.22 × 179,072.36
  4. Step 4: Simplify right side
    331,421x = 88,856,639,789.72
  5. Step 5: Solve for x
    x = 88,856,639,789.72/331,421
  6. Step 6: Final answer
    x = 268,108.06

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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.