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Finding the Fourth Proportional to 166,822.20, 250,233.30 and 42,163.20

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Solution

The fourth proportional to 166,822.20, 250,233.30 and 42,163.20 is: 63,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,822.20 : 250,233.30 = 42,163.20 : x
  2. Step 2: Convert to fraction form
    166,822.20/250,233.30 = 42,163.20/x
  3. Step 3: Cross multiply
    166,822.20x = 250,233.30 × 42,163.20
  4. Step 4: Simplify right side
    166,822.20x = 10,550,636,674.56
  5. Step 5: Solve for x
    x = 10,550,636,674.56/166,822.20
  6. Step 6: Final answer
    x = 63,244.80

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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.