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Finding the Third Proportional to 156,040 and 336,992

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Solution

The third proportional to 156,040 and 336,992 is: 727,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,040 : 336,992 = 336,992 : x
  2. Step 2: Convert to fraction form
    156,040/336,992 = 336,992/x
  3. Step 3: Cross multiply
    156,040x = 336,992 × 336,992
  4. Step 4: Simplify right side
    156,040x = 113,563,608,064
  5. Step 5: Solve for x
    x = 113,563,608,064/156,040
  6. Step 6: Final answer
    x = 727,785.23

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.