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Finding the Fourth Proportional to 316,718.82, 437,072.09 and 173,481.26

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Solution

The fourth proportional to 316,718.82, 437,072.09 and 173,481.26 is: 239,404.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,718.82 : 437,072.09 = 173,481.26 : x
  2. Step 2: Convert to fraction form
    316,718.82/437,072.09 = 173,481.26/x
  3. Step 3: Cross multiply
    316,718.82x = 437,072.09 × 173,481.26
  4. Step 4: Simplify right side
    316,718.82x = 75,823,813,831.27
  5. Step 5: Solve for x
    x = 75,823,813,831.27/316,718.82
  6. Step 6: Final answer
    x = 239,404.19

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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.