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Finding the Third Proportional to 117,282 and 256,073

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Solution

The third proportional to 117,282 and 256,073 is: 559,108.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,282 : 256,073 = 256,073 : x
  2. Step 2: Convert to fraction form
    117,282/256,073 = 256,073/x
  3. Step 3: Cross multiply
    117,282x = 256,073 × 256,073
  4. Step 4: Simplify right side
    117,282x = 65,573,381,329
  5. Step 5: Solve for x
    x = 65,573,381,329/117,282
  6. Step 6: Final answer
    x = 559,108.66

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.