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Finding the Third Proportional to 187,890.75 and 331,143.75

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Solution

The third proportional to 187,890.75 and 331,143.75 is: 583,616.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,890.75 : 331,143.75 = 331,143.75 : x
  2. Step 2: Convert to fraction form
    187,890.75/331,143.75 = 331,143.75/x
  3. Step 3: Cross multiply
    187,890.75x = 331,143.75 × 331,143.75
  4. Step 4: Simplify right side
    187,890.75x = 109,656,183,164.06
  5. Step 5: Solve for x
    x = 109,656,183,164.06/187,890.75
  6. Step 6: Final answer
    x = 583,616.72

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.