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Finding the Fourth Proportional to 331,155.95, 496,807.94 and 120,793.88

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Solution

The fourth proportional to 331,155.95, 496,807.94 and 120,793.88 is: 181,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,155.95 : 496,807.94 = 120,793.88 : x
  2. Step 2: Convert to fraction form
    331,155.95/496,807.94 = 120,793.88/x
  3. Step 3: Cross multiply
    331,155.95x = 496,807.94 × 120,793.88
  4. Step 4: Simplify right side
    331,155.95x = 60,011,360,231.41
  5. Step 5: Solve for x
    x = 60,011,360,231.41/331,155.95
  6. Step 6: Final answer
    x = 181,217.83

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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.