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Finding the Fourth Proportional to 422,837.48, 634,159.17 and 252,107.51

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Solution

The fourth proportional to 422,837.48, 634,159.17 and 252,107.51 is: 378,103.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,837.48 : 634,159.17 = 252,107.51 : x
  2. Step 2: Convert to fraction form
    422,837.48/634,159.17 = 252,107.51/x
  3. Step 3: Cross multiply
    422,837.48x = 634,159.17 × 252,107.51
  4. Step 4: Simplify right side
    422,837.48x = 159,876,286,121.57
  5. Step 5: Solve for x
    x = 159,876,286,121.57/422,837.48
  6. Step 6: Final answer
    x = 378,103.39

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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.