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Finding the Third Proportional to 118,490.98 and 256,664.95

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Solution

The third proportional to 118,490.98 and 256,664.95 is: 555,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,490.98 : 256,664.95 = 256,664.95 : x
  2. Step 2: Convert to fraction form
    118,490.98/256,664.95 = 256,664.95/x
  3. Step 3: Cross multiply
    118,490.98x = 256,664.95 × 256,664.95
  4. Step 4: Simplify right side
    118,490.98x = 65,876,898,162.66
  5. Step 5: Solve for x
    x = 65,876,898,162.66/118,490.98
  6. Step 6: Final answer
    x = 555,965.53

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.