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Finding the Fourth Proportional to 355,516.44, 533,222.22 and 130,824.68

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Solution

The fourth proportional to 355,516.44, 533,222.22 and 130,824.68 is: 196,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,516.44 : 533,222.22 = 130,824.68 : x
  2. Step 2: Convert to fraction form
    355,516.44/533,222.22 = 130,824.68/x
  3. Step 3: Cross multiply
    355,516.44x = 533,222.22 × 130,824.68
  4. Step 4: Simplify right side
    355,516.44x = 69,758,626,300.39
  5. Step 5: Solve for x
    x = 69,758,626,300.39/355,516.44
  6. Step 6: Final answer
    x = 196,217.72

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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.