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Finding the Third Proportional to 74,188 and 163,208

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Solution

The third proportional to 74,188 and 163,208 is: 359,045.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,188 : 163,208 = 163,208 : x
  2. Step 2: Convert to fraction form
    74,188/163,208 = 163,208/x
  3. Step 3: Cross multiply
    74,188x = 163,208 × 163,208
  4. Step 4: Simplify right side
    74,188x = 26,636,851,264
  5. Step 5: Solve for x
    x = 26,636,851,264/74,188
  6. Step 6: Final answer
    x = 359,045.28

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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.