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Finding the Third Proportional to 174,991 and 263,155

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Solution

The third proportional to 174,991 and 263,155 is: 395,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,991 : 263,155 = 263,155 : x
  2. Step 2: Convert to fraction form
    174,991/263,155 = 263,155/x
  3. Step 3: Cross multiply
    174,991x = 263,155 × 263,155
  4. Step 4: Simplify right side
    174,991x = 69,250,554,025
  5. Step 5: Solve for x
    x = 69,250,554,025/174,991
  6. Step 6: Final answer
    x = 395,737.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.