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Finding the Third Proportional to 72,904 and 107,006

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Solution

The third proportional to 72,904 and 107,006 is: 157,059.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,904 : 107,006 = 107,006 : x
  2. Step 2: Convert to fraction form
    72,904/107,006 = 107,006/x
  3. Step 3: Cross multiply
    72,904x = 107,006 × 107,006
  4. Step 4: Simplify right side
    72,904x = 11,450,284,036
  5. Step 5: Solve for x
    x = 11,450,284,036/72,904
  6. Step 6: Final answer
    x = 157,059.75

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.