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Finding the Third Proportional to 82,122,915 and 127,116,195

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Solution

The third proportional to 82,122,915 and 127,116,195 is: 196,760,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,122,915 : 127,116,195 = 127,116,195 : x
  2. Step 2: Convert to fraction form
    82,122,915/127,116,195 = 127,116,195/x
  3. Step 3: Cross multiply
    82,122,915x = 127,116,195 × 127,116,195
  4. Step 4: Simplify right side
    82,122,915x = 16,158,527,031,278,024
  5. Step 5: Solve for x
    x = 16,158,527,031,278,024/82,122,915
  6. Step 6: Final answer
    x = 196,760,271.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.