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Finding the Fourth Proportional to 171,181.58, 256,722.19 and 64,488.56

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Solution

The fourth proportional to 171,181.58, 256,722.19 and 64,488.56 is: 96,713.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,181.58 : 256,722.19 = 64,488.56 : x
  2. Step 2: Convert to fraction form
    171,181.58/256,722.19 = 64,488.56/x
  3. Step 3: Cross multiply
    171,181.58x = 256,722.19 × 64,488.56
  4. Step 4: Simplify right side
    171,181.58x = 16,555,644,833.73
  5. Step 5: Solve for x
    x = 16,555,644,833.73/171,181.58
  6. Step 6: Final answer
    x = 96,713.94

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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.