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Finding the Third Proportional to 72,004 and 107,718

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Solution

The third proportional to 72,004 and 107,718 is: 161,146.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,004 : 107,718 = 107,718 : x
  2. Step 2: Convert to fraction form
    72,004/107,718 = 107,718/x
  3. Step 3: Cross multiply
    72,004x = 107,718 × 107,718
  4. Step 4: Simplify right side
    72,004x = 11,603,167,524
  5. Step 5: Solve for x
    x = 11,603,167,524/72,004
  6. Step 6: Final answer
    x = 161,146.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.