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Finding the Fourth Proportional to 199,657.92, 275,573.88 and 131,687.04

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Solution

The fourth proportional to 199,657.92, 275,573.88 and 131,687.04 is: 181,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,657.92 : 275,573.88 = 131,687.04 : x
  2. Step 2: Convert to fraction form
    199,657.92/275,573.88 = 131,687.04/x
  3. Step 3: Cross multiply
    199,657.92x = 275,573.88 × 131,687.04
  4. Step 4: Simplify right side
    199,657.92x = 36,289,508,558.52
  5. Step 5: Solve for x
    x = 36,289,508,558.52/199,657.92
  6. Step 6: Final answer
    x = 181,758.42

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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.