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Finding the Third Proportional to 73,878 and 163,308

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Solution

The third proportional to 73,878 and 163,308 is: 360,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,878 : 163,308 = 163,308 : x
  2. Step 2: Convert to fraction form
    73,878/163,308 = 163,308/x
  3. Step 3: Cross multiply
    73,878x = 163,308 × 163,308
  4. Step 4: Simplify right side
    73,878x = 26,669,502,864
  5. Step 5: Solve for x
    x = 26,669,502,864/73,878
  6. Step 6: Final answer
    x = 360,993.84

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.