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Finding the Third Proportional to 191,184.75 and 420,115.50

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Solution

The third proportional to 191,184.75 and 420,115.50 is: 923,175.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,184.75 : 420,115.50 = 420,115.50 : x
  2. Step 2: Convert to fraction form
    191,184.75/420,115.50 = 420,115.50/x
  3. Step 3: Cross multiply
    191,184.75x = 420,115.50 × 420,115.50
  4. Step 4: Simplify right side
    191,184.75x = 176,497,033,340.25
  5. Step 5: Solve for x
    x = 176,497,033,340.25/191,184.75
  6. Step 6: Final answer
    x = 923,175.27

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.