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Finding the Fourth Proportional to 316,288.44, 436,474.17 and 173,046.42

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Solution

The fourth proportional to 316,288.44, 436,474.17 and 173,046.42 is: 238,801.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,288.44 : 436,474.17 = 173,046.42 : x
  2. Step 2: Convert to fraction form
    316,288.44/436,474.17 = 173,046.42/x
  3. Step 3: Cross multiply
    316,288.44x = 436,474.17 × 173,046.42
  4. Step 4: Simplify right side
    316,288.44x = 75,530,292,540.97
  5. Step 5: Solve for x
    x = 75,530,292,540.97/316,288.44
  6. Step 6: Final answer
    x = 238,801.94

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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.