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Finding the Fourth Proportional to 331,225.76, 496,846.80 and 120,863.63

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Solution

The fourth proportional to 331,225.76, 496,846.80 and 120,863.63 is: 181,298.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,225.76 : 496,846.80 = 120,863.63 : x
  2. Step 2: Convert to fraction form
    331,225.76/496,846.80 = 120,863.63/x
  3. Step 3: Cross multiply
    331,225.76x = 496,846.80 × 120,863.63
  4. Step 4: Simplify right side
    331,225.76x = 60,050,705,317.65
  5. Step 5: Solve for x
    x = 60,050,705,317.65/331,225.76
  6. Step 6: Final answer
    x = 181,298.42

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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.