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Finding the Fourth Proportional to 325,755.74, 488,513.78 and 112,469.48

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Solution

The fourth proportional to 325,755.74, 488,513.78 and 112,469.48 is: 168,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,755.74 : 488,513.78 = 112,469.48 : x
  2. Step 2: Convert to fraction form
    325,755.74/488,513.78 = 112,469.48/x
  3. Step 3: Cross multiply
    325,755.74x = 488,513.78 × 112,469.48
  4. Step 4: Simplify right side
    325,755.74x = 54,942,890,809.43
  5. Step 5: Solve for x
    x = 54,942,890,809.43/325,755.74
  6. Step 6: Final answer
    x = 168,662.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.