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Finding the Third Proportional to 98,686 and 146,328

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Solution

The third proportional to 98,686 and 146,328 is: 216,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,686 : 146,328 = 146,328 : x
  2. Step 2: Convert to fraction form
    98,686/146,328 = 146,328/x
  3. Step 3: Cross multiply
    98,686x = 146,328 × 146,328
  4. Step 4: Simplify right side
    98,686x = 21,411,883,584
  5. Step 5: Solve for x
    x = 21,411,883,584/98,686
  6. Step 6: Final answer
    x = 216,969.82

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.