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Finding the Third Proportional to 187,773.75 and 288,220.50

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Solution

The third proportional to 187,773.75 and 288,220.50 is: 442,399.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,773.75 : 288,220.50 = 288,220.50 : x
  2. Step 2: Convert to fraction form
    187,773.75/288,220.50 = 288,220.50/x
  3. Step 3: Cross multiply
    187,773.75x = 288,220.50 × 288,220.50
  4. Step 4: Simplify right side
    187,773.75x = 83,071,056,620.25
  5. Step 5: Solve for x
    x = 83,071,056,620.25/187,773.75
  6. Step 6: Final answer
    x = 442,399.73

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.