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Finding the Fourth Proportional to 231,301.72, 347,031.38 and 124,696

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Solution

The fourth proportional to 231,301.72, 347,031.38 and 124,696 is: 187,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,301.72 : 347,031.38 = 124,696 : x
  2. Step 2: Convert to fraction form
    231,301.72/347,031.38 = 124,696/x
  3. Step 3: Cross multiply
    231,301.72x = 347,031.38 × 124,696
  4. Step 4: Simplify right side
    231,301.72x = 43,273,424,960.48
  5. Step 5: Solve for x
    x = 43,273,424,960.48/231,301.72
  6. Step 6: Final answer
    x = 187,086.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.