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Finding the Fourth Proportional to 323,609.28, 485,632.60 and 113,249.04

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Solution

The fourth proportional to 323,609.28, 485,632.60 and 113,249.04 is: 169,950.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,609.28 : 485,632.60 = 113,249.04 : x
  2. Step 2: Convert to fraction form
    323,609.28/485,632.60 = 113,249.04/x
  3. Step 3: Cross multiply
    323,609.28x = 485,632.60 × 113,249.04
  4. Step 4: Simplify right side
    323,609.28x = 54,997,425,742.70
  5. Step 5: Solve for x
    x = 54,997,425,742.70/323,609.28
  6. Step 6: Final answer
    x = 169,950.09

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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.