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Finding the Third Proportional to 105,717 and 163,946

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Solution

The third proportional to 105,717 and 163,946 is: 254,247.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,717 : 163,946 = 163,946 : x
  2. Step 2: Convert to fraction form
    105,717/163,946 = 163,946/x
  3. Step 3: Cross multiply
    105,717x = 163,946 × 163,946
  4. Step 4: Simplify right side
    105,717x = 26,878,290,916
  5. Step 5: Solve for x
    x = 26,878,290,916/105,717
  6. Step 6: Final answer
    x = 254,247.58

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.