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Finding the Fourth Proportional to 207,635.40, 311,015.70 and 168,269.40

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Solution

The fourth proportional to 207,635.40, 311,015.70 and 168,269.40 is: 252,049.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,635.40 : 311,015.70 = 168,269.40 : x
  2. Step 2: Convert to fraction form
    207,635.40/311,015.70 = 168,269.40/x
  3. Step 3: Cross multiply
    207,635.40x = 311,015.70 × 168,269.40
  4. Step 4: Simplify right side
    207,635.40x = 52,334,425,229.58
  5. Step 5: Solve for x
    x = 52,334,425,229.58/207,635.40
  6. Step 6: Final answer
    x = 252,049.63

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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.