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Finding the Fourth Proportional to 355,429.22, 533,177.24 and 130,793.94

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Solution

The fourth proportional to 355,429.22, 533,177.24 and 130,793.94 is: 196,203.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,429.22 : 533,177.24 = 130,793.94 : x
  2. Step 2: Convert to fraction form
    355,429.22/533,177.24 = 130,793.94/x
  3. Step 3: Cross multiply
    355,429.22x = 533,177.24 × 130,793.94
  4. Step 4: Simplify right side
    355,429.22x = 69,736,351,283.96
  5. Step 5: Solve for x
    x = 69,736,351,283.96/355,429.22
  6. Step 6: Final answer
    x = 196,203.21

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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.