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Finding the Fourth Proportional to 168,996.50, 253,616.87 and 66,429.11

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Solution

The fourth proportional to 168,996.50, 253,616.87 and 66,429.11 is: 99,691.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,996.50 : 253,616.87 = 66,429.11 : x
  2. Step 2: Convert to fraction form
    168,996.50/253,616.87 = 66,429.11/x
  3. Step 3: Cross multiply
    168,996.50x = 253,616.87 × 66,429.11
  4. Step 4: Simplify right side
    168,996.50x = 16,847,542,622.94
  5. Step 5: Solve for x
    x = 16,847,542,622.94/168,996.50
  6. Step 6: Final answer
    x = 99,691.67

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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.