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Finding the Third Proportional to 98,668 and 147,420

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Solution

The third proportional to 98,668 and 147,420 is: 220,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,668 : 147,420 = 147,420 : x
  2. Step 2: Convert to fraction form
    98,668/147,420 = 147,420/x
  3. Step 3: Cross multiply
    98,668x = 147,420 × 147,420
  4. Step 4: Simplify right side
    98,668x = 21,732,656,400
  5. Step 5: Solve for x
    x = 21,732,656,400/98,668
  6. Step 6: Final answer
    x = 220,260.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.