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Finding the Third Proportional to 191,477.25 and 407,166.75

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Solution

The third proportional to 191,477.25 and 407,166.75 is: 865,819.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,477.25 : 407,166.75 = 407,166.75 : x
  2. Step 2: Convert to fraction form
    191,477.25/407,166.75 = 407,166.75/x
  3. Step 3: Cross multiply
    191,477.25x = 407,166.75 × 407,166.75
  4. Step 4: Simplify right side
    191,477.25x = 165,784,762,305.56
  5. Step 5: Solve for x
    x = 165,784,762,305.56/191,477.25
  6. Step 6: Final answer
    x = 865,819.63

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.