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Finding the Third Proportional to 187,908,554 and 287,479,041

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Solution

The third proportional to 187,908,554 and 287,479,041 is: 439,810,733.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,908,554 : 287,479,041 = 287,479,041 : x
  2. Step 2: Convert to fraction form
    187,908,554/287,479,041 = 287,479,041/x
  3. Step 3: Cross multiply
    187,908,554x = 287,479,041 × 287,479,041
  4. Step 4: Simplify right side
    187,908,554x = 82,644,199,014,279,680
  5. Step 5: Solve for x
    x = 82,644,199,014,279,680/187,908,554
  6. Step 6: Final answer
    x = 439,810,733.76

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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.