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Finding the Fourth Proportional to 172,481.32, 238,021.50 and 95,999.50

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Solution

The fourth proportional to 172,481.32, 238,021.50 and 95,999.50 is: 132,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,481.32 : 238,021.50 = 95,999.50 : x
  2. Step 2: Convert to fraction form
    172,481.32/238,021.50 = 95,999.50/x
  3. Step 3: Cross multiply
    172,481.32x = 238,021.50 × 95,999.50
  4. Step 4: Simplify right side
    172,481.32x = 22,849,944,989.25
  5. Step 5: Solve for x
    x = 22,849,944,989.25/172,481.32
  6. Step 6: Final answer
    x = 132,477.80

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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.