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Finding the Third Proportional to 76,107 and 119,385

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Solution

The third proportional to 76,107 and 119,385 is: 187,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,107 : 119,385 = 119,385 : x
  2. Step 2: Convert to fraction form
    76,107/119,385 = 119,385/x
  3. Step 3: Cross multiply
    76,107x = 119,385 × 119,385
  4. Step 4: Simplify right side
    76,107x = 14,252,778,225
  5. Step 5: Solve for x
    x = 14,252,778,225/76,107
  6. Step 6: Final answer
    x = 187,272.90

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.