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Finding the Third Proportional to 77,780.25 and 167,384.25

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Solution

The third proportional to 77,780.25 and 167,384.25 is: 360,213.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,780.25 : 167,384.25 = 167,384.25 : x
  2. Step 2: Convert to fraction form
    77,780.25/167,384.25 = 167,384.25/x
  3. Step 3: Cross multiply
    77,780.25x = 167,384.25 × 167,384.25
  4. Step 4: Simplify right side
    77,780.25x = 28,017,487,148.06
  5. Step 5: Solve for x
    x = 28,017,487,148.06/77,780.25
  6. Step 6: Final answer
    x = 360,213.39

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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.