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Finding the Third Proportional to 77,632.50 and 167,157

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Solution

The third proportional to 77,632.50 and 167,157 is: 359,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,632.50 : 167,157 = 167,157 : x
  2. Step 2: Convert to fraction form
    77,632.50/167,157 = 167,157/x
  3. Step 3: Cross multiply
    77,632.50x = 167,157 × 167,157
  4. Step 4: Simplify right side
    77,632.50x = 27,941,462,649
  5. Step 5: Solve for x
    x = 27,941,462,649/77,632.50
  6. Step 6: Final answer
    x = 359,919.66

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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.