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Finding the Fourth Proportional to 379,136.80, 568,532.40 and 168,666.40

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Solution

The fourth proportional to 379,136.80, 568,532.40 and 168,666.40 is: 252,922.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,136.80 : 568,532.40 = 168,666.40 : x
  2. Step 2: Convert to fraction form
    379,136.80/568,532.40 = 168,666.40/x
  3. Step 3: Cross multiply
    379,136.80x = 568,532.40 × 168,666.40
  4. Step 4: Simplify right side
    379,136.80x = 95,892,313,191.36
  5. Step 5: Solve for x
    x = 95,892,313,191.36/379,136.80
  6. Step 6: Final answer
    x = 252,922.73

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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.