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Finding the Third Proportional to 74,391.75 and 113,339.25

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Solution

The third proportional to 74,391.75 and 113,339.25 is: 172,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,391.75 : 113,339.25 = 113,339.25 : x
  2. Step 2: Convert to fraction form
    74,391.75/113,339.25 = 113,339.25/x
  3. Step 3: Cross multiply
    74,391.75x = 113,339.25 × 113,339.25
  4. Step 4: Simplify right side
    74,391.75x = 12,845,785,590.56
  5. Step 5: Solve for x
    x = 12,845,785,590.56/74,391.75
  6. Step 6: Final answer
    x = 172,677.56

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.