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Finding the Fourth Proportional to 323,676.10, 485,514.15 and 146,529.10

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Solution

The fourth proportional to 323,676.10, 485,514.15 and 146,529.10 is: 219,793.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,676.10 : 485,514.15 = 146,529.10 : x
  2. Step 2: Convert to fraction form
    323,676.10/485,514.15 = 146,529.10/x
  3. Step 3: Cross multiply
    323,676.10x = 485,514.15 × 146,529.10
  4. Step 4: Simplify right side
    323,676.10x = 71,141,951,436.77
  5. Step 5: Solve for x
    x = 71,141,951,436.77/323,676.10
  6. Step 6: Final answer
    x = 219,793.65

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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.