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Finding the Third Proportional to 91,370,864 and 199,485,228

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Solution

The third proportional to 91,370,864 and 199,485,228 is: 435,525,663.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,370,864 : 199,485,228 = 199,485,228 : x
  2. Step 2: Convert to fraction form
    91,370,864/199,485,228 = 199,485,228/x
  3. Step 3: Cross multiply
    91,370,864x = 199,485,228 × 199,485,228
  4. Step 4: Simplify right side
    91,370,864x = 39,794,356,190,211,984
  5. Step 5: Solve for x
    x = 39,794,356,190,211,984/91,370,864
  6. Step 6: Final answer
    x = 435,525,663.74

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.