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Finding the Third Proportional to 121,019 and 265,922

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Solution

The third proportional to 121,019 and 265,922 is: 584,325.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,019 : 265,922 = 265,922 : x
  2. Step 2: Convert to fraction form
    121,019/265,922 = 265,922/x
  3. Step 3: Cross multiply
    121,019x = 265,922 × 265,922
  4. Step 4: Simplify right side
    121,019x = 70,714,510,084
  5. Step 5: Solve for x
    x = 70,714,510,084/121,019
  6. Step 6: Final answer
    x = 584,325.69

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.