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Finding the Third Proportional to 99,657.50 and 154,467.75

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Solution

The third proportional to 99,657.50 and 154,467.75 is: 239,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,657.50 : 154,467.75 = 154,467.75 : x
  2. Step 2: Convert to fraction form
    99,657.50/154,467.75 = 154,467.75/x
  3. Step 3: Cross multiply
    99,657.50x = 154,467.75 × 154,467.75
  4. Step 4: Simplify right side
    99,657.50x = 23,860,285,790.06
  5. Step 5: Solve for x
    x = 23,860,285,790.06/99,657.50
  6. Step 6: Final answer
    x = 239,422.88

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.