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Finding the Third Proportional to 187,812 and 291,264

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Solution

The third proportional to 187,812 and 291,264 is: 451,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,812 : 291,264 = 291,264 : x
  2. Step 2: Convert to fraction form
    187,812/291,264 = 291,264/x
  3. Step 3: Cross multiply
    187,812x = 291,264 × 291,264
  4. Step 4: Simplify right side
    187,812x = 84,834,717,696
  5. Step 5: Solve for x
    x = 84,834,717,696/187,812
  6. Step 6: Final answer
    x = 451,700.20

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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.