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Finding the Fourth Proportional to 275,249.39, 412,874.73 and 75,572.51

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Solution

The fourth proportional to 275,249.39, 412,874.73 and 75,572.51 is: 113,358.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,249.39 : 412,874.73 = 75,572.51 : x
  2. Step 2: Convert to fraction form
    275,249.39/412,874.73 = 75,572.51/x
  3. Step 3: Cross multiply
    275,249.39x = 412,874.73 × 75,572.51
  4. Step 4: Simplify right side
    275,249.39x = 31,201,979,661.67
  5. Step 5: Solve for x
    x = 31,201,979,661.67/275,249.39
  6. Step 6: Final answer
    x = 113,358.94

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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.