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Finding the Fourth Proportional to 361,404.20, 542,106.30 and 193,442.60

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Solution

The fourth proportional to 361,404.20, 542,106.30 and 193,442.60 is: 290,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,404.20 : 542,106.30 = 193,442.60 : x
  2. Step 2: Convert to fraction form
    361,404.20/542,106.30 = 193,442.60/x
  3. Step 3: Cross multiply
    361,404.20x = 542,106.30 × 193,442.60
  4. Step 4: Simplify right side
    361,404.20x = 104,866,452,148.38
  5. Step 5: Solve for x
    x = 104,866,452,148.38/361,404.20
  6. Step 6: Final answer
    x = 290,163.90

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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.