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Finding the Third Proportional to 74,288 and 118,110

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Solution

The third proportional to 74,288 and 118,110 is: 187,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,288 : 118,110 = 118,110 : x
  2. Step 2: Convert to fraction form
    74,288/118,110 = 118,110/x
  3. Step 3: Cross multiply
    74,288x = 118,110 × 118,110
  4. Step 4: Simplify right side
    74,288x = 13,949,972,100
  5. Step 5: Solve for x
    x = 13,949,972,100/74,288
  6. Step 6: Final answer
    x = 187,782.31

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.