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Finding the Third Proportional to 187,636.50 and 276,491.81

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Solution

The third proportional to 187,636.50 and 276,491.81 is: 407,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,636.50 : 276,491.81 = 276,491.81 : x
  2. Step 2: Convert to fraction form
    187,636.50/276,491.81 = 276,491.81/x
  3. Step 3: Cross multiply
    187,636.50x = 276,491.81 × 276,491.81
  4. Step 4: Simplify right side
    187,636.50x = 76,447,722,379.54
  5. Step 5: Solve for x
    x = 76,447,722,379.54/187,636.50
  6. Step 6: Final answer
    x = 407,424.58

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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.