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Finding the Third Proportional to 129,637,462 and 200,666,944

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Solution

The third proportional to 129,637,462 and 200,666,944 is: 310,614,090.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,637,462 : 200,666,944 = 200,666,944 : x
  2. Step 2: Convert to fraction form
    129,637,462/200,666,944 = 200,666,944/x
  3. Step 3: Cross multiply
    129,637,462x = 200,666,944 × 200,666,944
  4. Step 4: Simplify right side
    129,637,462x = 40,267,222,414,299,136
  5. Step 5: Solve for x
    x = 40,267,222,414,299,136/129,637,462
  6. Step 6: Final answer
    x = 310,614,090.97

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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.