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Finding the Fourth Proportional to 271,770.80, 407,676.11 and 72,086.76

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Solution

The fourth proportional to 271,770.80, 407,676.11 and 72,086.76 is: 108,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,770.80 : 407,676.11 = 72,086.76 : x
  2. Step 2: Convert to fraction form
    271,770.80/407,676.11 = 72,086.76/x
  3. Step 3: Cross multiply
    271,770.80x = 407,676.11 × 72,086.76
  4. Step 4: Simplify right side
    271,770.80x = 29,388,049,538.87
  5. Step 5: Solve for x
    x = 29,388,049,538.87/271,770.80
  6. Step 6: Final answer
    x = 108,135.42

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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.