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Finding the Third Proportional to 112,408,215 and 168,612,312

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Solution

The third proportional to 112,408,215 and 168,612,312 is: 252,918,452.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,408,215 : 168,612,312 = 168,612,312 : x
  2. Step 2: Convert to fraction form
    112,408,215/168,612,312 = 168,612,312/x
  3. Step 3: Cross multiply
    112,408,215x = 168,612,312 × 168,612,312
  4. Step 4: Simplify right side
    112,408,215x = 28,430,111,757,985,344
  5. Step 5: Solve for x
    x = 28,430,111,757,985,344/112,408,215
  6. Step 6: Final answer
    x = 252,918,452.25

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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.