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Finding the Third Proportional to 74,603 and 163,908

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Solution

The third proportional to 74,603 and 163,908 is: 360,117.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,603 : 163,908 = 163,908 : x
  2. Step 2: Convert to fraction form
    74,603/163,908 = 163,908/x
  3. Step 3: Cross multiply
    74,603x = 163,908 × 163,908
  4. Step 4: Simplify right side
    74,603x = 26,865,832,464
  5. Step 5: Solve for x
    x = 26,865,832,464/74,603
  6. Step 6: Final answer
    x = 360,117.32

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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.