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Finding the Fourth Proportional to 342,626.92, 472,819.43 and 189,661.88

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Solution

The fourth proportional to 342,626.92, 472,819.43 and 189,661.88 is: 261,730.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,626.92 : 472,819.43 = 189,661.88 : x
  2. Step 2: Convert to fraction form
    342,626.92/472,819.43 = 189,661.88/x
  3. Step 3: Cross multiply
    342,626.92x = 472,819.43 × 189,661.88
  4. Step 4: Simplify right side
    342,626.92x = 89,675,822,454.08
  5. Step 5: Solve for x
    x = 89,675,822,454.08/342,626.92
  6. Step 6: Final answer
    x = 261,730.23

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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.