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Finding the Fourth Proportional to 331,093.55, 496,714.37 and 120,731.49

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Solution

The fourth proportional to 331,093.55, 496,714.37 and 120,731.49 is: 181,124.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,093.55 : 496,714.37 = 120,731.49 : x
  2. Step 2: Convert to fraction form
    331,093.55/496,714.37 = 120,731.49/x
  3. Step 3: Cross multiply
    331,093.55x = 496,714.37 × 120,731.49
  4. Step 4: Simplify right side
    331,093.55x = 59,969,065,390.85
  5. Step 5: Solve for x
    x = 59,969,065,390.85/331,093.55
  6. Step 6: Final answer
    x = 181,124.23

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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.