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Finding the Fourth Proportional to 220,499.70, 330,749.55 and 170,733.30

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Solution

The fourth proportional to 220,499.70, 330,749.55 and 170,733.30 is: 256,099.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,499.70 : 330,749.55 = 170,733.30 : x
  2. Step 2: Convert to fraction form
    220,499.70/330,749.55 = 170,733.30/x
  3. Step 3: Cross multiply
    220,499.70x = 330,749.55 × 170,733.30
  4. Step 4: Simplify right side
    220,499.70x = 56,469,962,145.02
  5. Step 5: Solve for x
    x = 56,469,962,145.02/220,499.70
  6. Step 6: Final answer
    x = 256,099.95

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Similar ratio
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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.