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Finding the Fourth Proportional to 618,788.34, 928,183.32 and 169,513.20

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Solution

The fourth proportional to 618,788.34, 928,183.32 and 169,513.20 is: 254,270.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,788.34 : 928,183.32 = 169,513.20 : x
  2. Step 2: Convert to fraction form
    618,788.34/928,183.32 = 169,513.20/x
  3. Step 3: Cross multiply
    618,788.34x = 928,183.32 × 169,513.20
  4. Step 4: Simplify right side
    618,788.34x = 157,339,324,759.82
  5. Step 5: Solve for x
    x = 157,339,324,759.82/618,788.34
  6. Step 6: Final answer
    x = 254,270.02

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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.