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Finding the Fourth Proportional to 383,834.80, 575,266.20 and 146,861.20

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Solution

The fourth proportional to 383,834.80, 575,266.20 and 146,861.20 is: 220,105.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,834.80 : 575,266.20 = 146,861.20 : x
  2. Step 2: Convert to fraction form
    383,834.80/575,266.20 = 146,861.20/x
  3. Step 3: Cross multiply
    383,834.80x = 575,266.20 × 146,861.20
  4. Step 4: Simplify right side
    383,834.80x = 84,484,284,451.44
  5. Step 5: Solve for x
    x = 84,484,284,451.44/383,834.80
  6. Step 6: Final answer
    x = 220,105.85

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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.