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Finding the Fourth Proportional to 307,372.22, 424,175.52 and 171,414.77

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Solution

The fourth proportional to 307,372.22, 424,175.52 and 171,414.77 is: 236,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,372.22 : 424,175.52 = 171,414.77 : x
  2. Step 2: Convert to fraction form
    307,372.22/424,175.52 = 171,414.77/x
  3. Step 3: Cross multiply
    307,372.22x = 424,175.52 × 171,414.77
  4. Step 4: Simplify right side
    307,372.22x = 72,709,949,200.43
  5. Step 5: Solve for x
    x = 72,709,949,200.43/307,372.22
  6. Step 6: Final answer
    x = 236,553.42

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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.