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Finding the Third Proportional to 76,430.25 and 165,982.50

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Solution

The third proportional to 76,430.25 and 165,982.50 is: 360,461.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,430.25 : 165,982.50 = 165,982.50 : x
  2. Step 2: Convert to fraction form
    76,430.25/165,982.50 = 165,982.50/x
  3. Step 3: Cross multiply
    76,430.25x = 165,982.50 × 165,982.50
  4. Step 4: Simplify right side
    76,430.25x = 27,550,190,306.25
  5. Step 5: Solve for x
    x = 27,550,190,306.25/76,430.25
  6. Step 6: Final answer
    x = 360,461.86

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.