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Finding the Fourth Proportional to 173,016.78, 238,781.43 and 101,399.82

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Solution

The fourth proportional to 173,016.78, 238,781.43 and 101,399.82 is: 139,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,016.78 : 238,781.43 = 101,399.82 : x
  2. Step 2: Convert to fraction form
    173,016.78/238,781.43 = 101,399.82/x
  3. Step 3: Cross multiply
    173,016.78x = 238,781.43 × 101,399.82
  4. Step 4: Simplify right side
    173,016.78x = 24,212,394,021.34
  5. Step 5: Solve for x
    x = 24,212,394,021.34/173,016.78
  6. Step 6: Final answer
    x = 139,942.46

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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.