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Finding the Fourth Proportional to 275,299.89, 412,933.24 and 163,690.37

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Solution

The fourth proportional to 275,299.89, 412,933.24 and 163,690.37 is: 245,525.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,299.89 : 412,933.24 = 163,690.37 : x
  2. Step 2: Convert to fraction form
    275,299.89/412,933.24 = 163,690.37/x
  3. Step 3: Cross multiply
    275,299.89x = 412,933.24 × 163,690.37
  4. Step 4: Simplify right side
    275,299.89x = 67,593,191,957.78
  5. Step 5: Solve for x
    x = 67,593,191,957.78/275,299.89
  6. Step 6: Final answer
    x = 245,525.68

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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.