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Finding the Third Proportional to 147,323 and 220,739

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Solution

The third proportional to 147,323 and 220,739 is: 330,740.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,323 : 220,739 = 220,739 : x
  2. Step 2: Convert to fraction form
    147,323/220,739 = 220,739/x
  3. Step 3: Cross multiply
    147,323x = 220,739 × 220,739
  4. Step 4: Simplify right side
    147,323x = 48,725,706,121
  5. Step 5: Solve for x
    x = 48,725,706,121/147,323
  6. Step 6: Final answer
    x = 330,740.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.