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Finding the Fourth Proportional to 264,889.20, 397,794.60 and 140,473.20

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Solution

The fourth proportional to 264,889.20, 397,794.60 and 140,473.20 is: 210,954.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,889.20 : 397,794.60 = 140,473.20 : x
  2. Step 2: Convert to fraction form
    264,889.20/397,794.60 = 140,473.20/x
  3. Step 3: Cross multiply
    264,889.20x = 397,794.60 × 140,473.20
  4. Step 4: Simplify right side
    264,889.20x = 55,879,480,404.72
  5. Step 5: Solve for x
    x = 55,879,480,404.72/264,889.20
  6. Step 6: Final answer
    x = 210,954.17

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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.