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Finding the Third Proportional to 187,912,514 and 287,484,663

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Solution

The third proportional to 187,912,514 and 287,484,663 is: 439,818,667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,912,514 : 287,484,663 = 287,484,663 : x
  2. Step 2: Convert to fraction form
    187,912,514/287,484,663 = 287,484,663/x
  3. Step 3: Cross multiply
    187,912,514x = 287,484,663 × 287,484,663
  4. Step 4: Simplify right side
    187,912,514x = 82,647,431,460,223,568
  5. Step 5: Solve for x
    x = 82,647,431,460,223,568/187,912,514
  6. Step 6: Final answer
    x = 439,818,667.21

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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.