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Finding the Fourth Proportional to 393,170.22, 589,755.96 and 168,513.09

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Solution

The fourth proportional to 393,170.22, 589,755.96 and 168,513.09 is: 252,769.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,170.22 : 589,755.96 = 168,513.09 : x
  2. Step 2: Convert to fraction form
    393,170.22/589,755.96 = 168,513.09/x
  3. Step 3: Cross multiply
    393,170.22x = 589,755.96 × 168,513.09
  4. Step 4: Simplify right side
    393,170.22x = 99,381,599,165.52
  5. Step 5: Solve for x
    x = 99,381,599,165.52/393,170.22
  6. Step 6: Final answer
    x = 252,769.91

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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.