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Finding the Fourth Proportional to 331,206.95, 496,818.62 and 120,844.88

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Solution

The fourth proportional to 331,206.95, 496,818.62 and 120,844.88 is: 181,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,206.95 : 496,818.62 = 120,844.88 : x
  2. Step 2: Convert to fraction form
    331,206.95/496,818.62 = 120,844.88/x
  3. Step 3: Cross multiply
    331,206.95x = 496,818.62 × 120,844.88
  4. Step 4: Simplify right side
    331,206.95x = 60,037,983,427.35
  5. Step 5: Solve for x
    x = 60,037,983,427.35/331,206.95
  6. Step 6: Final answer
    x = 181,270.30

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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.