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Finding the Third Proportional to 168,120 and 260,322

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Solution

The third proportional to 168,120 and 260,322 is: 403,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,120 : 260,322 = 260,322 : x
  2. Step 2: Convert to fraction form
    168,120/260,322 = 260,322/x
  3. Step 3: Cross multiply
    168,120x = 260,322 × 260,322
  4. Step 4: Simplify right side
    168,120x = 67,767,543,684
  5. Step 5: Solve for x
    x = 67,767,543,684/168,120
  6. Step 6: Final answer
    x = 403,090.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.