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Finding the Fourth Proportional to 168,195.84, 252,200.70 and 66,891.30

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Solution

The fourth proportional to 168,195.84, 252,200.70 and 66,891.30 is: 100,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,195.84 : 252,200.70 = 66,891.30 : x
  2. Step 2: Convert to fraction form
    168,195.84/252,200.70 = 66,891.30/x
  3. Step 3: Cross multiply
    168,195.84x = 252,200.70 × 66,891.30
  4. Step 4: Simplify right side
    168,195.84x = 16,870,032,683.91
  5. Step 5: Solve for x
    x = 16,870,032,683.91/168,195.84
  6. Step 6: Final answer
    x = 100,299.94

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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.