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Finding the Third Proportional to 78,043 and 167,923

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Solution

The third proportional to 78,043 and 167,923 is: 361,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,043 : 167,923 = 167,923 : x
  2. Step 2: Convert to fraction form
    78,043/167,923 = 167,923/x
  3. Step 3: Cross multiply
    78,043x = 167,923 × 167,923
  4. Step 4: Simplify right side
    78,043x = 28,198,133,929
  5. Step 5: Solve for x
    x = 28,198,133,929/78,043
  6. Step 6: Final answer
    x = 361,315.35

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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.