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Finding the Third Proportional to 225,142 and 316,652

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Solution

The third proportional to 225,142 and 316,652 is: 445,356.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,142 : 316,652 = 316,652 : x
  2. Step 2: Convert to fraction form
    225,142/316,652 = 316,652/x
  3. Step 3: Cross multiply
    225,142x = 316,652 × 316,652
  4. Step 4: Simplify right side
    225,142x = 100,268,489,104
  5. Step 5: Solve for x
    x = 100,268,489,104/225,142
  6. Step 6: Final answer
    x = 445,356.66

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.