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Finding the Third Proportional to 178,769.25 and 262,309.50

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Solution

The third proportional to 178,769.25 and 262,309.50 is: 384,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,769.25 : 262,309.50 = 262,309.50 : x
  2. Step 2: Convert to fraction form
    178,769.25/262,309.50 = 262,309.50/x
  3. Step 3: Cross multiply
    178,769.25x = 262,309.50 × 262,309.50
  4. Step 4: Simplify right side
    178,769.25x = 68,806,273,790.25
  5. Step 5: Solve for x
    x = 68,806,273,790.25/178,769.25
  6. Step 6: Final answer
    x = 384,888.75

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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.