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Finding the Third Proportional to 179,880 and 263,988

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Solution

The third proportional to 179,880 and 263,988 is: 387,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,880 : 263,988 = 263,988 : x
  2. Step 2: Convert to fraction form
    179,880/263,988 = 263,988/x
  3. Step 3: Cross multiply
    179,880x = 263,988 × 263,988
  4. Step 4: Simplify right side
    179,880x = 69,689,664,144
  5. Step 5: Solve for x
    x = 69,689,664,144/179,880
  6. Step 6: Final answer
    x = 387,423.08

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.