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Finding the Third Proportional to 170,842 and 260,476

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Solution

The third proportional to 170,842 and 260,476 is: 397,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,842 : 260,476 = 260,476 : x
  2. Step 2: Convert to fraction form
    170,842/260,476 = 260,476/x
  3. Step 3: Cross multiply
    170,842x = 260,476 × 260,476
  4. Step 4: Simplify right side
    170,842x = 67,847,746,576
  5. Step 5: Solve for x
    x = 67,847,746,576/170,842
  6. Step 6: Final answer
    x = 397,137.39

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.