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Finding the Third Proportional to 174,208 and 260,636

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Solution

The third proportional to 174,208 and 260,636 is: 389,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,208 : 260,636 = 260,636 : x
  2. Step 2: Convert to fraction form
    174,208/260,636 = 260,636/x
  3. Step 3: Cross multiply
    174,208x = 260,636 × 260,636
  4. Step 4: Simplify right side
    174,208x = 67,931,124,496
  5. Step 5: Solve for x
    x = 67,931,124,496/174,208
  6. Step 6: Final answer
    x = 389,942.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.