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Finding the Third Proportional to 185,107 and 399,010

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Solution

The third proportional to 185,107 and 399,010 is: 860,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,107 : 399,010 = 399,010 : x
  2. Step 2: Convert to fraction form
    185,107/399,010 = 399,010/x
  3. Step 3: Cross multiply
    185,107x = 399,010 × 399,010
  4. Step 4: Simplify right side
    185,107x = 159,208,980,100
  5. Step 5: Solve for x
    x = 159,208,980,100/185,107
  6. Step 6: Final answer
    x = 860,091.62

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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.