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Finding the Third Proportional to 70,220 and 150,321

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Solution

The third proportional to 70,220 and 150,321 is: 321,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,220 : 150,321 = 150,321 : x
  2. Step 2: Convert to fraction form
    70,220/150,321 = 150,321/x
  3. Step 3: Cross multiply
    70,220x = 150,321 × 150,321
  4. Step 4: Simplify right side
    70,220x = 22,596,403,041
  5. Step 5: Solve for x
    x = 22,596,403,041/70,220
  6. Step 6: Final answer
    x = 321,794.40

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.