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Finding the Third Proportional to 103,287.94 and 221,641.88

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Solution

The third proportional to 103,287.94 and 221,641.88 is: 475,613.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,287.94 : 221,641.88 = 221,641.88 : x
  2. Step 2: Convert to fraction form
    103,287.94/221,641.88 = 221,641.88/x
  3. Step 3: Cross multiply
    103,287.94x = 221,641.88 × 221,641.88
  4. Step 4: Simplify right side
    103,287.94x = 49,125,120,753.52
  5. Step 5: Solve for x
    x = 49,125,120,753.52/103,287.94
  6. Step 6: Final answer
    x = 475,613.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.