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Finding the Third Proportional to 167,847 and 256,153.50

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Solution

The third proportional to 167,847 and 256,153.50 is: 390,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,847 : 256,153.50 = 256,153.50 : x
  2. Step 2: Convert to fraction form
    167,847/256,153.50 = 256,153.50/x
  3. Step 3: Cross multiply
    167,847x = 256,153.50 × 256,153.50
  4. Step 4: Simplify right side
    167,847x = 65,614,615,562.25
  5. Step 5: Solve for x
    x = 65,614,615,562.25/167,847
  6. Step 6: Final answer
    x = 390,919.20

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.