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Finding the Third Proportional to 168,216.75 and 355,387.50

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Solution

The third proportional to 168,216.75 and 355,387.50 is: 750,818.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,216.75 : 355,387.50 = 355,387.50 : x
  2. Step 2: Convert to fraction form
    168,216.75/355,387.50 = 355,387.50/x
  3. Step 3: Cross multiply
    168,216.75x = 355,387.50 × 355,387.50
  4. Step 4: Simplify right side
    168,216.75x = 126,300,275,156.25
  5. Step 5: Solve for x
    x = 126,300,275,156.25/168,216.75
  6. Step 6: Final answer
    x = 750,818.66

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.