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Finding the Third Proportional to 77,611.13 and 170,462.63

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Solution

The third proportional to 77,611.13 and 170,462.63 is: 374,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,611.13 : 170,462.63 = 170,462.63 : x
  2. Step 2: Convert to fraction form
    77,611.13/170,462.63 = 170,462.63/x
  3. Step 3: Cross multiply
    77,611.13x = 170,462.63 × 170,462.63
  4. Step 4: Simplify right side
    77,611.13x = 29,057,506,521.89
  5. Step 5: Solve for x
    x = 29,057,506,521.89/77,611.13
  6. Step 6: Final answer
    x = 374,398.73

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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.