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Finding the Fourth Proportional to 351,696.52, 485,164.24 and 230,821.03

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Solution

The fourth proportional to 351,696.52, 485,164.24 and 230,821.03 is: 318,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,696.52 : 485,164.24 = 230,821.03 : x
  2. Step 2: Convert to fraction form
    351,696.52/485,164.24 = 230,821.03/x
  3. Step 3: Cross multiply
    351,696.52x = 485,164.24 × 230,821.03
  4. Step 4: Simplify right side
    351,696.52x = 111,986,109,595.97
  5. Step 5: Solve for x
    x = 111,986,109,595.97/351,696.52
  6. Step 6: Final answer
    x = 318,416.88

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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.