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Finding the Third Proportional to 56,322 and 121,338

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Solution

The third proportional to 56,322 and 121,338 is: 261,406.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,322 : 121,338 = 121,338 : x
  2. Step 2: Convert to fraction form
    56,322/121,338 = 121,338/x
  3. Step 3: Cross multiply
    56,322x = 121,338 × 121,338
  4. Step 4: Simplify right side
    56,322x = 14,722,910,244
  5. Step 5: Solve for x
    x = 14,722,910,244/56,322
  6. Step 6: Final answer
    x = 261,406.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.