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Finding the Fourth Proportional to 167,890.20, 251,604.90 and 136,786.20

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Solution

The fourth proportional to 167,890.20, 251,604.90 and 136,786.20 is: 204,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,890.20 : 251,604.90 = 136,786.20 : x
  2. Step 2: Convert to fraction form
    167,890.20/251,604.90 = 136,786.20/x
  3. Step 3: Cross multiply
    167,890.20x = 251,604.90 × 136,786.20
  4. Step 4: Simplify right side
    167,890.20x = 34,416,078,172.38
  5. Step 5: Solve for x
    x = 34,416,078,172.38/167,890.20
  6. Step 6: Final answer
    x = 204,991.58

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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.