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Finding the Third Proportional to 117,720.75 and 254,760

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Solution

The third proportional to 117,720.75 and 254,760 is: 551,327.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,720.75 : 254,760 = 254,760 : x
  2. Step 2: Convert to fraction form
    117,720.75/254,760 = 254,760/x
  3. Step 3: Cross multiply
    117,720.75x = 254,760 × 254,760
  4. Step 4: Simplify right side
    117,720.75x = 64,902,657,600
  5. Step 5: Solve for x
    x = 64,902,657,600/117,720.75
  6. Step 6: Final answer
    x = 551,327.25

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.