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Finding the Fourth Proportional to 352,362.06, 486,259.96 and 191,217.11

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Solution

The fourth proportional to 352,362.06, 486,259.96 and 191,217.11 is: 263,879.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,362.06 : 486,259.96 = 191,217.11 : x
  2. Step 2: Convert to fraction form
    352,362.06/486,259.96 = 191,217.11/x
  3. Step 3: Cross multiply
    352,362.06x = 486,259.96 × 191,217.11
  4. Step 4: Simplify right side
    352,362.06x = 92,981,223,781.87
  5. Step 5: Solve for x
    x = 92,981,223,781.87/352,362.06
  6. Step 6: Final answer
    x = 263,879.78

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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.