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Finding the Fourth Proportional to 221,494.37, 332,274.15 and 71,684.87

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Solution

The fourth proportional to 221,494.37, 332,274.15 and 71,684.87 is: 107,537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,494.37 : 332,274.15 = 71,684.87 : x
  2. Step 2: Convert to fraction form
    221,494.37/332,274.15 = 71,684.87/x
  3. Step 3: Cross multiply
    221,494.37x = 332,274.15 × 71,684.87
  4. Step 4: Simplify right side
    221,494.37x = 23,819,027,585.74
  5. Step 5: Solve for x
    x = 23,819,027,585.74/221,494.37
  6. Step 6: Final answer
    x = 107,537.85

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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.