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Finding the Third Proportional to 74,268 and 115,054

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Solution

The third proportional to 74,268 and 115,054 is: 178,238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,268 : 115,054 = 115,054 : x
  2. Step 2: Convert to fraction form
    74,268/115,054 = 115,054/x
  3. Step 3: Cross multiply
    74,268x = 115,054 × 115,054
  4. Step 4: Simplify right side
    74,268x = 13,237,422,916
  5. Step 5: Solve for x
    x = 13,237,422,916/74,268
  6. Step 6: Final answer
    x = 178,238.58

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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.