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Finding the Fourth Proportional to 172,999.28, 238,738.24 and 93,511.28

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Solution

The fourth proportional to 172,999.28, 238,738.24 and 93,511.28 is: 129,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,999.28 : 238,738.24 = 93,511.28 : x
  2. Step 2: Convert to fraction form
    172,999.28/238,738.24 = 93,511.28/x
  3. Step 3: Cross multiply
    172,999.28x = 238,738.24 × 93,511.28
  4. Step 4: Simplify right side
    172,999.28x = 22,324,718,407.35
  5. Step 5: Solve for x
    x = 22,324,718,407.35/172,999.28
  6. Step 6: Final answer
    x = 129,045.15

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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.