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Finding the Fourth Proportional to 323,690.97, 446,684.92 and 187,716.41

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Solution

The fourth proportional to 323,690.97, 446,684.92 and 187,716.41 is: 259,043.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,690.97 : 446,684.92 = 187,716.41 : x
  2. Step 2: Convert to fraction form
    323,690.97/446,684.92 = 187,716.41/x
  3. Step 3: Cross multiply
    323,690.97x = 446,684.92 × 187,716.41
  4. Step 4: Simplify right side
    323,690.97x = 83,850,086,880.82
  5. Step 5: Solve for x
    x = 83,850,086,880.82/323,690.97
  6. Step 6: Final answer
    x = 259,043.64

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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.