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Finding the Fourth Proportional to 262,873.55, 394,028.75 and 187,765.90

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Solution

The fourth proportional to 262,873.55, 394,028.75 and 187,765.90 is: 281,447.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,873.55 : 394,028.75 = 187,765.90 : x
  2. Step 2: Convert to fraction form
    262,873.55/394,028.75 = 187,765.90/x
  3. Step 3: Cross multiply
    262,873.55x = 394,028.75 × 187,765.90
  4. Step 4: Simplify right side
    262,873.55x = 73,985,162,353.97
  5. Step 5: Solve for x
    x = 73,985,162,353.97/262,873.55
  6. Step 6: Final answer
    x = 281,447.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.