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Finding the Third Proportional to 188,419.50 and 255,858

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Solution

The third proportional to 188,419.50 and 255,858 is: 347,433.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,419.50 : 255,858 = 255,858 : x
  2. Step 2: Convert to fraction form
    188,419.50/255,858 = 255,858/x
  3. Step 3: Cross multiply
    188,419.50x = 255,858 × 255,858
  4. Step 4: Simplify right side
    188,419.50x = 65,463,316,164
  5. Step 5: Solve for x
    x = 65,463,316,164/188,419.50
  6. Step 6: Final answer
    x = 347,433.87

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.