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Finding the Third Proportional to 103,615 and 160,480

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Solution

The third proportional to 103,615 and 160,480 is: 248,553.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615 : 160,480 = 160,480 : x
  2. Step 2: Convert to fraction form
    103,615/160,480 = 160,480/x
  3. Step 3: Cross multiply
    103,615x = 160,480 × 160,480
  4. Step 4: Simplify right side
    103,615x = 25,753,830,400
  5. Step 5: Solve for x
    x = 25,753,830,400/103,615
  6. Step 6: Final answer
    x = 248,553.11

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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.