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Finding the Third Proportional to 98,104.50 and 211,890

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Solution

The third proportional to 98,104.50 and 211,890 is: 457,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,104.50 : 211,890 = 211,890 : x
  2. Step 2: Convert to fraction form
    98,104.50/211,890 = 211,890/x
  3. Step 3: Cross multiply
    98,104.50x = 211,890 × 211,890
  4. Step 4: Simplify right side
    98,104.50x = 44,897,372,100
  5. Step 5: Solve for x
    x = 44,897,372,100/98,104.50
  6. Step 6: Final answer
    x = 457,648.45

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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.