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Finding the Fourth Proportional to 331,363.72, 496,747.50 and 120,854.44

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Solution

The fourth proportional to 331,363.72, 496,747.50 and 120,854.44 is: 181,172.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,363.72 : 496,747.50 = 120,854.44 : x
  2. Step 2: Convert to fraction form
    331,363.72/496,747.50 = 120,854.44/x
  3. Step 3: Cross multiply
    331,363.72x = 496,747.50 × 120,854.44
  4. Step 4: Simplify right side
    331,363.72x = 60,034,140,933.90
  5. Step 5: Solve for x
    x = 60,034,140,933.90/331,363.72
  6. Step 6: Final answer
    x = 181,172.94

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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.