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Finding the Fourth Proportional to 331,156, 496,808.04 and 120,793.93

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Solution

The fourth proportional to 331,156, 496,808.04 and 120,793.93 is: 181,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,156 : 496,808.04 = 120,793.93 : x
  2. Step 2: Convert to fraction form
    331,156/496,808.04 = 120,793.93/x
  3. Step 3: Cross multiply
    331,156x = 496,808.04 × 120,793.93
  4. Step 4: Simplify right side
    331,156x = 60,011,395,607.20
  5. Step 5: Solve for x
    x = 60,011,395,607.20/331,156
  6. Step 6: Final answer
    x = 181,217.90

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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.