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Finding the Third Proportional to 103,628 and 158,449

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Solution

The third proportional to 103,628 and 158,449 is: 242,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628 : 158,449 = 158,449 : x
  2. Step 2: Convert to fraction form
    103,628/158,449 = 158,449/x
  3. Step 3: Cross multiply
    103,628x = 158,449 × 158,449
  4. Step 4: Simplify right side
    103,628x = 25,106,085,601
  5. Step 5: Solve for x
    x = 25,106,085,601/103,628
  6. Step 6: Final answer
    x = 242,271.25

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.