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Finding the Third Proportional to 117,943.50 and 256,623

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Solution

The third proportional to 117,943.50 and 256,623 is: 558,363.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,943.50 : 256,623 = 256,623 : x
  2. Step 2: Convert to fraction form
    117,943.50/256,623 = 256,623/x
  3. Step 3: Cross multiply
    117,943.50x = 256,623 × 256,623
  4. Step 4: Simplify right side
    117,943.50x = 65,855,364,129
  5. Step 5: Solve for x
    x = 65,855,364,129/117,943.50
  6. Step 6: Final answer
    x = 558,363.66

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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.