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Finding the Third Proportional to 191,217,124 and 422,628,615

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Solution

The third proportional to 191,217,124 and 422,628,615 is: 934,094,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,217,124 : 422,628,615 = 422,628,615 : x
  2. Step 2: Convert to fraction form
    191,217,124/422,628,615 = 422,628,615/x
  3. Step 3: Cross multiply
    191,217,124x = 422,628,615 × 422,628,615
  4. Step 4: Simplify right side
    191,217,124x = 178,614,946,216,818,240
  5. Step 5: Solve for x
    x = 178,614,946,216,818,240/191,217,124
  6. Step 6: Final answer
    x = 934,094,930.83

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.