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Finding the Third Proportional to 74,144 and 114,902.63

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Solution

The third proportional to 74,144 and 114,902.63 is: 178,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,144 : 114,902.63 = 114,902.63 : x
  2. Step 2: Convert to fraction form
    74,144/114,902.63 = 114,902.63/x
  3. Step 3: Cross multiply
    74,144x = 114,902.63 × 114,902.63
  4. Step 4: Simplify right side
    74,144x = 13,202,613,231.89
  5. Step 5: Solve for x
    x = 13,202,613,231.89/74,144
  6. Step 6: Final answer
    x = 178,067.18

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.