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Finding the Fourth Proportional to 387,573.20, 581,446.20 and 150,894.80

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Solution

The fourth proportional to 387,573.20, 581,446.20 and 150,894.80 is: 226,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,573.20 : 581,446.20 = 150,894.80 : x
  2. Step 2: Convert to fraction form
    387,573.20/581,446.20 = 150,894.80/x
  3. Step 3: Cross multiply
    387,573.20x = 581,446.20 × 150,894.80
  4. Step 4: Simplify right side
    387,573.20x = 87,737,208,059.76
  5. Step 5: Solve for x
    x = 87,737,208,059.76/387,573.20
  6. Step 6: Final answer
    x = 226,375.84

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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.