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Finding the Fourth Proportional to 203,600.72, 305,420.52 and 63,321.68

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Solution

The fourth proportional to 203,600.72, 305,420.52 and 63,321.68 is: 94,988.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,600.72 : 305,420.52 = 63,321.68 : x
  2. Step 2: Convert to fraction form
    203,600.72/305,420.52 = 63,321.68/x
  3. Step 3: Cross multiply
    203,600.72x = 305,420.52 × 63,321.68
  4. Step 4: Simplify right side
    203,600.72x = 19,339,740,432.87
  5. Step 5: Solve for x
    x = 19,339,740,432.87/203,600.72
  6. Step 6: Final answer
    x = 94,988.57

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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.