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Finding the Fourth Proportional to 311,908.05, 467,857.74 and 75,248.73

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Solution

The fourth proportional to 311,908.05, 467,857.74 and 75,248.73 is: 112,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,908.05 : 467,857.74 = 75,248.73 : x
  2. Step 2: Convert to fraction form
    311,908.05/467,857.74 = 75,248.73/x
  3. Step 3: Cross multiply
    311,908.05x = 467,857.74 × 75,248.73
  4. Step 4: Simplify right side
    311,908.05x = 35,205,700,755.67
  5. Step 5: Solve for x
    x = 35,205,700,755.67/311,908.05
  6. Step 6: Final answer
    x = 112,872.05

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1.5x scale

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.