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Finding the Third Proportional to 187,792 and 291,236

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Solution

The third proportional to 187,792 and 291,236 is: 451,661.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,792 : 291,236 = 291,236 : x
  2. Step 2: Convert to fraction form
    187,792/291,236 = 291,236/x
  3. Step 3: Cross multiply
    187,792x = 291,236 × 291,236
  4. Step 4: Simplify right side
    187,792x = 84,818,407,696
  5. Step 5: Solve for x
    x = 84,818,407,696/187,792
  6. Step 6: Final answer
    x = 451,661.45

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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.