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Finding the Third Proportional to 178,769.50 and 262,310

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Solution

The third proportional to 178,769.50 and 262,310 is: 384,889.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,769.50 : 262,310 = 262,310 : x
  2. Step 2: Convert to fraction form
    178,769.50/262,310 = 262,310/x
  3. Step 3: Cross multiply
    178,769.50x = 262,310 × 262,310
  4. Step 4: Simplify right side
    178,769.50x = 68,806,536,100
  5. Step 5: Solve for x
    x = 68,806,536,100/178,769.50
  6. Step 6: Final answer
    x = 384,889.68

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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.