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Finding the Third Proportional to 73,972 and 120,178

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Solution

The third proportional to 73,972 and 120,178 is: 195,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,972 : 120,178 = 120,178 : x
  2. Step 2: Convert to fraction form
    73,972/120,178 = 120,178/x
  3. Step 3: Cross multiply
    73,972x = 120,178 × 120,178
  4. Step 4: Simplify right side
    73,972x = 14,442,751,684
  5. Step 5: Solve for x
    x = 14,442,751,684/73,972
  6. Step 6: Final answer
    x = 195,246.20

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.