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Finding the Third Proportional to 98,657.50 and 213,079

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Solution

The third proportional to 98,657.50 and 213,079 is: 460,204.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,657.50 : 213,079 = 213,079 : x
  2. Step 2: Convert to fraction form
    98,657.50/213,079 = 213,079/x
  3. Step 3: Cross multiply
    98,657.50x = 213,079 × 213,079
  4. Step 4: Simplify right side
    98,657.50x = 45,402,660,241
  5. Step 5: Solve for x
    x = 45,402,660,241/98,657.50
  6. Step 6: Final answer
    x = 460,204.85

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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.