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Finding the Fourth Proportional to 342,469.25, 472,608.17 and 189,513.92

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Solution

The fourth proportional to 342,469.25, 472,608.17 and 189,513.92 is: 261,529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,469.25 : 472,608.17 = 189,513.92 : x
  2. Step 2: Convert to fraction form
    342,469.25/472,608.17 = 189,513.92/x
  3. Step 3: Cross multiply
    342,469.25x = 472,608.17 × 189,513.92
  4. Step 4: Simplify right side
    342,469.25x = 89,565,823,610.12
  5. Step 5: Solve for x
    x = 89,565,823,610.12/342,469.25
  6. Step 6: Final answer
    x = 261,529.54

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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.