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Finding the Fourth Proportional to 350,993.86, 526,556.41 and 140,648.20

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Solution

The fourth proportional to 350,993.86, 526,556.41 and 140,648.20 is: 210,998.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,993.86 : 526,556.41 = 140,648.20 : x
  2. Step 2: Convert to fraction form
    350,993.86/526,556.41 = 140,648.20/x
  3. Step 3: Cross multiply
    350,993.86x = 526,556.41 × 140,648.20
  4. Step 4: Simplify right side
    350,993.86x = 74,059,208,632.18
  5. Step 5: Solve for x
    x = 74,059,208,632.18/350,993.86
  6. Step 6: Final answer
    x = 210,998.59

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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.