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Finding the Third Proportional to 76,074 and 111,213

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Solution

The third proportional to 76,074 and 111,213 is: 162,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,074 : 111,213 = 111,213 : x
  2. Step 2: Convert to fraction form
    76,074/111,213 = 111,213/x
  3. Step 3: Cross multiply
    76,074x = 111,213 × 111,213
  4. Step 4: Simplify right side
    76,074x = 12,368,331,369
  5. Step 5: Solve for x
    x = 12,368,331,369/76,074
  6. Step 6: Final answer
    x = 162,582.90

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.