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Finding the Third Proportional to 191,312.30 and 276,556.36

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Solution

The third proportional to 191,312.30 and 276,556.36 is: 399,783.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,312.30 : 276,556.36 = 276,556.36 : x
  2. Step 2: Convert to fraction form
    191,312.30/276,556.36 = 276,556.36/x
  3. Step 3: Cross multiply
    191,312.30x = 276,556.36 × 276,556.36
  4. Step 4: Simplify right side
    191,312.30x = 76,483,419,910.75
  5. Step 5: Solve for x
    x = 76,483,419,910.75/191,312.30
  6. Step 6: Final answer
    x = 399,783.08

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.