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Finding the Fourth Proportional to 171,182.58, 256,723.69 and 64,489.56

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Solution

The fourth proportional to 171,182.58, 256,723.69 and 64,489.56 is: 96,715.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,182.58 : 256,723.69 = 64,489.56 : x
  2. Step 2: Convert to fraction form
    171,182.58/256,723.69 = 64,489.56/x
  3. Step 3: Cross multiply
    171,182.58x = 256,723.69 × 64,489.56
  4. Step 4: Simplify right side
    171,182.58x = 16,555,997,809.68
  5. Step 5: Solve for x
    x = 16,555,997,809.68/171,182.58
  6. Step 6: Final answer
    x = 96,715.44

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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.