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Finding the Third Proportional to 168,612,321 and 252,918,465

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Solution

The third proportional to 168,612,321 and 252,918,465 is: 379,377,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,612,321 : 252,918,465 = 252,918,465 : x
  2. Step 2: Convert to fraction form
    168,612,321/252,918,465 = 252,918,465/x
  3. Step 3: Cross multiply
    168,612,321x = 252,918,465 × 252,918,465
  4. Step 4: Simplify right side
    168,612,321x = 63,967,749,937,956,224
  5. Step 5: Solve for x
    x = 63,967,749,937,956,224/168,612,321
  6. Step 6: Final answer
    x = 379,377,672.75

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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.