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Finding the Third Proportional to 76,110 and 119,390

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Solution

The third proportional to 76,110 and 119,390 is: 187,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,110 : 119,390 = 119,390 : x
  2. Step 2: Convert to fraction form
    76,110/119,390 = 119,390/x
  3. Step 3: Cross multiply
    76,110x = 119,390 × 119,390
  4. Step 4: Simplify right side
    76,110x = 14,253,972,100
  5. Step 5: Solve for x
    x = 14,253,972,100/76,110
  6. Step 6: Final answer
    x = 187,281.20

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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.