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Finding the Fourth Proportional to 342,956.96, 473,279.68 and 189,995.44

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Solution

The fourth proportional to 342,956.96, 473,279.68 and 189,995.44 is: 262,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,956.96 : 473,279.68 = 189,995.44 : x
  2. Step 2: Convert to fraction form
    342,956.96/473,279.68 = 189,995.44/x
  3. Step 3: Cross multiply
    342,956.96x = 473,279.68 × 189,995.44
  4. Step 4: Simplify right side
    342,956.96x = 89,920,981,044.66
  5. Step 5: Solve for x
    x = 89,920,981,044.66/342,956.96
  6. Step 6: Final answer
    x = 262,193.19

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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.