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Finding the Third Proportional to 181,117 and 395,889

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Solution

The third proportional to 181,117 and 395,889 is: 865,341.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,117 : 395,889 = 395,889 : x
  2. Step 2: Convert to fraction form
    181,117/395,889 = 395,889/x
  3. Step 3: Cross multiply
    181,117x = 395,889 × 395,889
  4. Step 4: Simplify right side
    181,117x = 156,728,100,321
  5. Step 5: Solve for x
    x = 156,728,100,321/181,117
  6. Step 6: Final answer
    x = 865,341.74

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.