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Finding the Fourth Proportional to 277,806.72, 383,350.53 and 156,958.50

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Solution

The fourth proportional to 277,806.72, 383,350.53 and 156,958.50 is: 216,589.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,806.72 : 383,350.53 = 156,958.50 : x
  2. Step 2: Convert to fraction form
    277,806.72/383,350.53 = 156,958.50/x
  3. Step 3: Cross multiply
    277,806.72x = 383,350.53 × 156,958.50
  4. Step 4: Simplify right side
    277,806.72x = 60,170,124,163.01
  5. Step 5: Solve for x
    x = 60,170,124,163.01/277,806.72
  6. Step 6: Final answer
    x = 216,589.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.