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Finding the Fourth Proportional to 379,098.20, 568,770.34 and 112,861.02

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Solution

The fourth proportional to 379,098.20, 568,770.34 and 112,861.02 is: 169,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,098.20 : 568,770.34 = 112,861.02 : x
  2. Step 2: Convert to fraction form
    379,098.20/568,770.34 = 112,861.02/x
  3. Step 3: Cross multiply
    379,098.20x = 568,770.34 × 112,861.02
  4. Step 4: Simplify right side
    379,098.20x = 64,192,000,435.99
  5. Step 5: Solve for x
    x = 64,192,000,435.99/379,098.20
  6. Step 6: Final answer
    x = 169,328.16

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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.