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Finding the Fourth Proportional to 172,936.46, 238,705.49 and 101,339.54

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Solution

The fourth proportional to 172,936.46, 238,705.49 and 101,339.54 is: 139,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,936.46 : 238,705.49 = 101,339.54 : x
  2. Step 2: Convert to fraction form
    172,936.46/238,705.49 = 101,339.54/x
  3. Step 3: Cross multiply
    172,936.46x = 238,705.49 × 101,339.54
  4. Step 4: Simplify right side
    172,936.46x = 24,190,304,045.38
  5. Step 5: Solve for x
    x = 24,190,304,045.38/172,936.46
  6. Step 6: Final answer
    x = 139,879.73

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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.