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Finding the Fourth Proportional to 352,891.55, 486,993.31 and 191,746.61

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Solution

The fourth proportional to 352,891.55, 486,993.31 and 191,746.61 is: 264,611.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,891.55 : 486,993.31 = 191,746.61 : x
  2. Step 2: Convert to fraction form
    352,891.55/486,993.31 = 191,746.61/x
  3. Step 3: Cross multiply
    352,891.55x = 486,993.31 × 191,746.61
  4. Step 4: Simplify right side
    352,891.55x = 93,379,313,850.21
  5. Step 5: Solve for x
    x = 93,379,313,850.21/352,891.55
  6. Step 6: Final answer
    x = 264,611.93

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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.