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Finding the Third Proportional to 76,716 and 168,600

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Solution

The third proportional to 76,716 and 168,600 is: 370,534.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,716 : 168,600 = 168,600 : x
  2. Step 2: Convert to fraction form
    76,716/168,600 = 168,600/x
  3. Step 3: Cross multiply
    76,716x = 168,600 × 168,600
  4. Step 4: Simplify right side
    76,716x = 28,425,960,000
  5. Step 5: Solve for x
    x = 28,425,960,000/76,716
  6. Step 6: Final answer
    x = 370,534.96

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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.