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Finding the Third Proportional to 74,370 and 163,563

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Solution

The third proportional to 74,370 and 163,563 is: 359,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,370 : 163,563 = 163,563 : x
  2. Step 2: Convert to fraction form
    74,370/163,563 = 163,563/x
  3. Step 3: Cross multiply
    74,370x = 163,563 × 163,563
  4. Step 4: Simplify right side
    74,370x = 26,752,854,969
  5. Step 5: Solve for x
    x = 26,752,854,969/74,370
  6. Step 6: Final answer
    x = 359,726.43

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.