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Finding the Fourth Proportional to 170,596.76, 256,116.87 and 131,181.54

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Solution

The fourth proportional to 170,596.76, 256,116.87 and 131,181.54 is: 196,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,596.76 : 256,116.87 = 131,181.54 : x
  2. Step 2: Convert to fraction form
    170,596.76/256,116.87 = 131,181.54/x
  3. Step 3: Cross multiply
    170,596.76x = 256,116.87 × 131,181.54
  4. Step 4: Simplify right side
    170,596.76x = 33,597,805,426.58
  5. Step 5: Solve for x
    x = 33,597,805,426.58/170,596.76
  6. Step 6: Final answer
    x = 196,942.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.