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Finding the Third Proportional to 100,702.13 and 219,379.50

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Solution

The third proportional to 100,702.13 and 219,379.50 is: 477,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,702.13 : 219,379.50 = 219,379.50 : x
  2. Step 2: Convert to fraction form
    100,702.13/219,379.50 = 219,379.50/x
  3. Step 3: Cross multiply
    100,702.13x = 219,379.50 × 219,379.50
  4. Step 4: Simplify right side
    100,702.13x = 48,127,365,020.25
  5. Step 5: Solve for x
    x = 48,127,365,020.25/100,702.13
  6. Step 6: Final answer
    x = 477,918.07

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.