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Finding the Fourth Proportional to 262,874.55, 394,030.25 and 187,766.90

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Solution

The fourth proportional to 262,874.55, 394,030.25 and 187,766.90 is: 281,449.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,874.55 : 394,030.25 = 187,766.90 : x
  2. Step 2: Convert to fraction form
    262,874.55/394,030.25 = 187,766.90/x
  3. Step 3: Cross multiply
    262,874.55x = 394,030.25 × 187,766.90
  4. Step 4: Simplify right side
    262,874.55x = 73,985,838,548.73
  5. Step 5: Solve for x
    x = 73,985,838,548.73/262,874.55
  6. Step 6: Final answer
    x = 281,449.23

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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.