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Finding the Fourth Proportional to 361,793.80, 542,690.70 and 151,409.80

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Solution

The fourth proportional to 361,793.80, 542,690.70 and 151,409.80 is: 227,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,793.80 : 542,690.70 = 151,409.80 : x
  2. Step 2: Convert to fraction form
    361,793.80/542,690.70 = 151,409.80/x
  3. Step 3: Cross multiply
    361,793.80x = 542,690.70 × 151,409.80
  4. Step 4: Simplify right side
    361,793.80x = 82,168,690,348.86
  5. Step 5: Solve for x
    x = 82,168,690,348.86/361,793.80
  6. Step 6: Final answer
    x = 227,114.70

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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.