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Finding the Fourth Proportional to 136,101.70, 203,933.85 and 100,672.30

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Solution

The fourth proportional to 136,101.70, 203,933.85 and 100,672.30 is: 150,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,101.70 : 203,933.85 = 100,672.30 : x
  2. Step 2: Convert to fraction form
    136,101.70/203,933.85 = 100,672.30/x
  3. Step 3: Cross multiply
    136,101.70x = 203,933.85 × 100,672.30
  4. Step 4: Simplify right side
    136,101.70x = 20,530,489,727.36
  5. Step 5: Solve for x
    x = 20,530,489,727.36/136,101.70
  6. Step 6: Final answer
    x = 150,846.68

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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.