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Finding the Third Proportional to 106,440 and 168,732

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Solution

The third proportional to 106,440 and 168,732 is: 267,479.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,440 : 168,732 = 168,732 : x
  2. Step 2: Convert to fraction form
    106,440/168,732 = 168,732/x
  3. Step 3: Cross multiply
    106,440x = 168,732 × 168,732
  4. Step 4: Simplify right side
    106,440x = 28,470,487,824
  5. Step 5: Solve for x
    x = 28,470,487,824/106,440
  6. Step 6: Final answer
    x = 267,479.22

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.