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Finding the Third Proportional to 99,392,060 and 213,538,992

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Solution

The third proportional to 99,392,060 and 213,538,992 is: 458,778,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,392,060 : 213,538,992 = 213,538,992 : x
  2. Step 2: Convert to fraction form
    99,392,060/213,538,992 = 213,538,992/x
  3. Step 3: Cross multiply
    99,392,060x = 213,538,992 × 213,538,992
  4. Step 4: Simplify right side
    99,392,060x = 45,598,901,104,376,064
  5. Step 5: Solve for x
    x = 45,598,901,104,376,064/99,392,060
  6. Step 6: Final answer
    x = 458,778,106.67

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.