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Finding the Third Proportional to 103,418 and 151,021

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Solution

The third proportional to 103,418 and 151,021 is: 220,535.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,418 : 151,021 = 151,021 : x
  2. Step 2: Convert to fraction form
    103,418/151,021 = 151,021/x
  3. Step 3: Cross multiply
    103,418x = 151,021 × 151,021
  4. Step 4: Simplify right side
    103,418x = 22,807,342,441
  5. Step 5: Solve for x
    x = 22,807,342,441/103,418
  6. Step 6: Final answer
    x = 220,535.52

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.