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Finding the Third Proportional to 97,428.50 and 209,361

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Solution

The third proportional to 97,428.50 and 209,361 is: 449,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,428.50 : 209,361 = 209,361 : x
  2. Step 2: Convert to fraction form
    97,428.50/209,361 = 209,361/x
  3. Step 3: Cross multiply
    97,428.50x = 209,361 × 209,361
  4. Step 4: Simplify right side
    97,428.50x = 43,832,028,321
  5. Step 5: Solve for x
    x = 43,832,028,321/97,428.50
  6. Step 6: Final answer
    x = 449,889.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.