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Finding the Third Proportional to 74,768 and 124,612

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Solution

The third proportional to 74,768 and 124,612 is: 207,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,768 : 124,612 = 124,612 : x
  2. Step 2: Convert to fraction form
    74,768/124,612 = 124,612/x
  3. Step 3: Cross multiply
    74,768x = 124,612 × 124,612
  4. Step 4: Simplify right side
    74,768x = 15,528,150,544
  5. Step 5: Solve for x
    x = 15,528,150,544/74,768
  6. Step 6: Final answer
    x = 207,684.44

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.