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Finding the Fourth Proportional to 297,974.99, 447,243.38 and 108,618.38

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Solution

The fourth proportional to 297,974.99, 447,243.38 and 108,618.38 is: 163,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,974.99 : 447,243.38 = 108,618.38 : x
  2. Step 2: Convert to fraction form
    297,974.99/447,243.38 = 108,618.38/x
  3. Step 3: Cross multiply
    297,974.99x = 447,243.38 × 108,618.38
  4. Step 4: Simplify right side
    297,974.99x = 48,578,852,790.98
  5. Step 5: Solve for x
    x = 48,578,852,790.98/297,974.99
  6. Step 6: Final answer
    x = 163,029.97

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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.