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Finding the Fourth Proportional to 172,472.91, 238,016.26 and 97,021.41

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Solution

The fourth proportional to 172,472.91, 238,016.26 and 97,021.41 is: 133,891.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,472.91 : 238,016.26 = 97,021.41 : x
  2. Step 2: Convert to fraction form
    172,472.91/238,016.26 = 97,021.41/x
  3. Step 3: Cross multiply
    172,472.91x = 238,016.26 × 97,021.41
  4. Step 4: Simplify right side
    172,472.91x = 23,092,671,831.10
  5. Step 5: Solve for x
    x = 23,092,671,831.10/172,472.91
  6. Step 6: Final answer
    x = 133,891.59

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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.