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Finding the Third Proportional to 187,690.50 and 276,558.75

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Solution

The third proportional to 187,690.50 and 276,558.75 is: 407,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,690.50 : 276,558.75 = 276,558.75 : x
  2. Step 2: Convert to fraction form
    187,690.50/276,558.75 = 276,558.75/x
  3. Step 3: Cross multiply
    187,690.50x = 276,558.75 × 276,558.75
  4. Step 4: Simplify right side
    187,690.50x = 76,484,742,201.56
  5. Step 5: Solve for x
    x = 76,484,742,201.56/187,690.50
  6. Step 6: Final answer
    x = 407,504.60

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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.