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Finding the Third Proportional to 187,925 and 290,859

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Solution

The third proportional to 187,925 and 290,859 is: 450,174.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,925 : 290,859 = 290,859 : x
  2. Step 2: Convert to fraction form
    187,925/290,859 = 290,859/x
  3. Step 3: Cross multiply
    187,925x = 290,859 × 290,859
  4. Step 4: Simplify right side
    187,925x = 84,598,957,881
  5. Step 5: Solve for x
    x = 84,598,957,881/187,925
  6. Step 6: Final answer
    x = 450,174.05

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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.