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Finding the Third Proportional to 60,543 and 129,426

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Solution

The third proportional to 60,543 and 129,426 is: 276,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,543 : 129,426 = 129,426 : x
  2. Step 2: Convert to fraction form
    60,543/129,426 = 129,426/x
  3. Step 3: Cross multiply
    60,543x = 129,426 × 129,426
  4. Step 4: Simplify right side
    60,543x = 16,751,089,476
  5. Step 5: Solve for x
    x = 16,751,089,476/60,543
  6. Step 6: Final answer
    x = 276,680.86

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.