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Finding the Fourth Proportional to 172,789.73, 238,420.94 and 96,292.07

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Solution

The fourth proportional to 172,789.73, 238,420.94 and 96,292.07 is: 132,866.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,789.73 : 238,420.94 = 96,292.07 : x
  2. Step 2: Convert to fraction form
    172,789.73/238,420.94 = 96,292.07/x
  3. Step 3: Cross multiply
    172,789.73x = 238,420.94 × 96,292.07
  4. Step 4: Simplify right side
    172,789.73x = 22,958,045,843.95
  5. Step 5: Solve for x
    x = 22,958,045,843.95/172,789.73
  6. Step 6: Final answer
    x = 132,866.96

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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.