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Finding the Fourth Proportional to 352,336.65, 486,217.83 and 199,372.06

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Solution

The fourth proportional to 352,336.65, 486,217.83 and 199,372.06 is: 275,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,336.65 : 486,217.83 = 199,372.06 : x
  2. Step 2: Convert to fraction form
    352,336.65/486,217.83 = 199,372.06/x
  3. Step 3: Cross multiply
    352,336.65x = 486,217.83 × 199,372.06
  4. Step 4: Simplify right side
    352,336.65x = 96,938,247,944.74
  5. Step 5: Solve for x
    x = 96,938,247,944.74/352,336.65
  6. Step 6: Final answer
    x = 275,129.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.