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Finding the Fourth Proportional to 322,755.42, 483,097.94 and 172,620.30

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Solution

The fourth proportional to 322,755.42, 483,097.94 and 172,620.30 is: 258,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,755.42 : 483,097.94 = 172,620.30 : x
  2. Step 2: Convert to fraction form
    322,755.42/483,097.94 = 172,620.30/x
  3. Step 3: Cross multiply
    322,755.42x = 483,097.94 × 172,620.30
  4. Step 4: Simplify right side
    322,755.42x = 83,392,509,348.24
  5. Step 5: Solve for x
    x = 83,392,509,348.24/322,755.42
  6. Step 6: Final answer
    x = 258,376.79

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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.