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Finding the Fourth Proportional to 361,863.60, 542,860.20 and 151,522.80

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Solution

The fourth proportional to 361,863.60, 542,860.20 and 151,522.80 is: 227,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,863.60 : 542,860.20 = 151,522.80 : x
  2. Step 2: Convert to fraction form
    361,863.60/542,860.20 = 151,522.80/x
  3. Step 3: Cross multiply
    361,863.60x = 542,860.20 × 151,522.80
  4. Step 4: Simplify right side
    361,863.60x = 82,255,697,512.56
  5. Step 5: Solve for x
    x = 82,255,697,512.56/361,863.60
  6. Step 6: Final answer
    x = 227,311.33

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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.