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Finding the Fourth Proportional to 331,957.60, 458,058.24 and 188,714.56

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Solution

The fourth proportional to 331,957.60, 458,058.24 and 188,714.56 is: 260,401.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,957.60 : 458,058.24 = 188,714.56 : x
  2. Step 2: Convert to fraction form
    331,957.60/458,058.24 = 188,714.56/x
  3. Step 3: Cross multiply
    331,957.60x = 458,058.24 × 188,714.56
  4. Step 4: Simplify right side
    331,957.60x = 86,442,259,215.97
  5. Step 5: Solve for x
    x = 86,442,259,215.97/331,957.60
  6. Step 6: Final answer
    x = 260,401.51

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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.