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Finding the Third Proportional to 74,810 and 163,698

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Solution

The third proportional to 74,810 and 163,698 is: 358,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,810 : 163,698 = 163,698 : x
  2. Step 2: Convert to fraction form
    74,810/163,698 = 163,698/x
  3. Step 3: Cross multiply
    74,810x = 163,698 × 163,698
  4. Step 4: Simplify right side
    74,810x = 26,797,035,204
  5. Step 5: Solve for x
    x = 26,797,035,204/74,810
  6. Step 6: Final answer
    x = 358,201.25

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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.