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Finding the Fourth Proportional to 352,362.56, 486,260.65 and 191,217.61

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Solution

The fourth proportional to 352,362.56, 486,260.65 and 191,217.61 is: 263,880.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,362.56 : 486,260.65 = 191,217.61 : x
  2. Step 2: Convert to fraction form
    352,362.56/486,260.65 = 191,217.61/x
  3. Step 3: Cross multiply
    352,362.56x = 486,260.65 × 191,217.61
  4. Step 4: Simplify right side
    352,362.56x = 92,981,598,852.00
  5. Step 5: Solve for x
    x = 92,981,598,852.00/352,362.56
  6. Step 6: Final answer
    x = 263,880.47

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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.