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Finding the Third Proportional to 163,517 and 352,831

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Solution

The third proportional to 163,517 and 352,831 is: 761,325.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,517 : 352,831 = 352,831 : x
  2. Step 2: Convert to fraction form
    163,517/352,831 = 352,831/x
  3. Step 3: Cross multiply
    163,517x = 352,831 × 352,831
  4. Step 4: Simplify right side
    163,517x = 124,489,714,561
  5. Step 5: Solve for x
    x = 124,489,714,561/163,517
  6. Step 6: Final answer
    x = 761,325.82

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.