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Finding the Third Proportional to 61,293,228 and 91,408,320

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Solution

The third proportional to 61,293,228 and 91,408,320 is: 136,319,806.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,293,228 : 91,408,320 = 91,408,320 : x
  2. Step 2: Convert to fraction form
    61,293,228/91,408,320 = 91,408,320/x
  3. Step 3: Cross multiply
    61,293,228x = 91,408,320 × 91,408,320
  4. Step 4: Simplify right side
    61,293,228x = 8,355,480,965,222,400
  5. Step 5: Solve for x
    x = 8,355,480,965,222,400/61,293,228
  6. Step 6: Final answer
    x = 136,319,806.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.