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Finding the Fourth Proportional to 215,846.70, 323,770.05 and 166,022.70

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Solution

The fourth proportional to 215,846.70, 323,770.05 and 166,022.70 is: 249,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,846.70 : 323,770.05 = 166,022.70 : x
  2. Step 2: Convert to fraction form
    215,846.70/323,770.05 = 166,022.70/x
  3. Step 3: Cross multiply
    215,846.70x = 323,770.05 × 166,022.70
  4. Step 4: Simplify right side
    215,846.70x = 53,753,177,880.14
  5. Step 5: Solve for x
    x = 53,753,177,880.14/215,846.70
  6. Step 6: Final answer
    x = 249,034.05

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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.