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Finding the Third Proportional to 191,389.50 and 417,799.13

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Solution

The third proportional to 191,389.50 and 417,799.13 is: 912,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,389.50 : 417,799.13 = 417,799.13 : x
  2. Step 2: Convert to fraction form
    191,389.50/417,799.13 = 417,799.13/x
  3. Step 3: Cross multiply
    191,389.50x = 417,799.13 × 417,799.13
  4. Step 4: Simplify right side
    191,389.50x = 174,556,108,850.77
  5. Step 5: Solve for x
    x = 174,556,108,850.77/191,389.50
  6. Step 6: Final answer
    x = 912,046.42

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.