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Finding the Third Proportional to 187,981,996 and 287,377,254

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Solution

The third proportional to 187,981,996 and 287,377,254 is: 439,327,637.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,981,996 : 287,377,254 = 287,377,254 : x
  2. Step 2: Convert to fraction form
    187,981,996/287,377,254 = 287,377,254/x
  3. Step 3: Cross multiply
    187,981,996x = 287,377,254 × 287,377,254
  4. Step 4: Simplify right side
    187,981,996x = 82,585,686,116,580,512
  5. Step 5: Solve for x
    x = 82,585,686,116,580,512/187,981,996
  6. Step 6: Final answer
    x = 439,327,637.08

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.