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Finding the Fourth Proportional to 171,049.45, 256,615.90 and 120,546.91

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Solution

The fourth proportional to 171,049.45, 256,615.90 and 120,546.91 is: 180,849.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,049.45 : 256,615.90 = 120,546.91 : x
  2. Step 2: Convert to fraction form
    171,049.45/256,615.90 = 120,546.91/x
  3. Step 3: Cross multiply
    171,049.45x = 256,615.90 × 120,546.91
  4. Step 4: Simplify right side
    171,049.45x = 30,934,253,099.54
  5. Step 5: Solve for x
    x = 30,934,253,099.54/171,049.45
  6. Step 6: Final answer
    x = 180,849.77

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1.5x scale

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.