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Finding the Fourth Proportional to 297,899.99, 411,105.96 and 161,936.03

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Solution

The fourth proportional to 297,899.99, 411,105.96 and 161,936.03 is: 223,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,899.99 : 411,105.96 = 161,936.03 : x
  2. Step 2: Convert to fraction form
    297,899.99/411,105.96 = 161,936.03/x
  3. Step 3: Cross multiply
    297,899.99x = 411,105.96 × 161,936.03
  4. Step 4: Simplify right side
    297,899.99x = 66,572,864,206.53
  5. Step 5: Solve for x
    x = 66,572,864,206.53/297,899.99
  6. Step 6: Final answer
    x = 223,473.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.