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Finding the Third Proportional to 161,401.50 and 209,943

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Solution

The third proportional to 161,401.50 and 209,943 is: 273,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,401.50 : 209,943 = 209,943 : x
  2. Step 2: Convert to fraction form
    161,401.50/209,943 = 209,943/x
  3. Step 3: Cross multiply
    161,401.50x = 209,943 × 209,943
  4. Step 4: Simplify right side
    161,401.50x = 44,076,063,249
  5. Step 5: Solve for x
    x = 44,076,063,249/161,401.50
  6. Step 6: Final answer
    x = 273,083.36

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.