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Finding the Third Proportional to 153,198 and 324,060

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Solution

The third proportional to 153,198 and 324,060 is: 685,484.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,198 : 324,060 = 324,060 : x
  2. Step 2: Convert to fraction form
    153,198/324,060 = 324,060/x
  3. Step 3: Cross multiply
    153,198x = 324,060 × 324,060
  4. Step 4: Simplify right side
    153,198x = 105,014,883,600
  5. Step 5: Solve for x
    x = 105,014,883,600/153,198
  6. Step 6: Final answer
    x = 685,484.69

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.