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Finding the Third Proportional to 162,987.75 and 259,344

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Solution

The third proportional to 162,987.75 and 259,344 is: 412,664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,987.75 : 259,344 = 259,344 : x
  2. Step 2: Convert to fraction form
    162,987.75/259,344 = 259,344/x
  3. Step 3: Cross multiply
    162,987.75x = 259,344 × 259,344
  4. Step 4: Simplify right side
    162,987.75x = 67,259,310,336
  5. Step 5: Solve for x
    x = 67,259,310,336/162,987.75
  6. Step 6: Final answer
    x = 412,664.82

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.