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Finding the Third Proportional to 67,508 and 147,724

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Solution

The third proportional to 67,508 and 147,724 is: 323,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,508 : 147,724 = 147,724 : x
  2. Step 2: Convert to fraction form
    67,508/147,724 = 147,724/x
  3. Step 3: Cross multiply
    67,508x = 147,724 × 147,724
  4. Step 4: Simplify right side
    67,508x = 21,822,380,176
  5. Step 5: Solve for x
    x = 21,822,380,176/67,508
  6. Step 6: Final answer
    x = 323,256.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.