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Finding the Third Proportional to 172,116 and 265,860

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Solution

The third proportional to 172,116 and 265,860 is: 410,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,116 : 265,860 = 265,860 : x
  2. Step 2: Convert to fraction form
    172,116/265,860 = 265,860/x
  3. Step 3: Cross multiply
    172,116x = 265,860 × 265,860
  4. Step 4: Simplify right side
    172,116x = 70,681,539,600
  5. Step 5: Solve for x
    x = 70,681,539,600/172,116
  6. Step 6: Final answer
    x = 410,662.23

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.