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Finding the Third Proportional to 187,866,981 and 301,995,189

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Solution

The third proportional to 187,866,981 and 301,995,189 is: 485,455,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,866,981 : 301,995,189 = 301,995,189 : x
  2. Step 2: Convert to fraction form
    187,866,981/301,995,189 = 301,995,189/x
  3. Step 3: Cross multiply
    187,866,981x = 301,995,189 × 301,995,189
  4. Step 4: Simplify right side
    187,866,981x = 91,201,094,179,145,728
  5. Step 5: Solve for x
    x = 91,201,094,179,145,728/187,866,981
  6. Step 6: Final answer
    x = 485,455,686.22

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.