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Finding the Fourth Proportional to 326,183.72, 489,321.21 and 101,560.46

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Solution

The fourth proportional to 326,183.72, 489,321.21 and 101,560.46 is: 152,354.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,183.72 : 489,321.21 = 101,560.46 : x
  2. Step 2: Convert to fraction form
    326,183.72/489,321.21 = 101,560.46/x
  3. Step 3: Cross multiply
    326,183.72x = 489,321.21 × 101,560.46
  4. Step 4: Simplify right side
    326,183.72x = 49,695,687,175.36
  5. Step 5: Solve for x
    x = 49,695,687,175.36/326,183.72
  6. Step 6: Final answer
    x = 152,354.90

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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.