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Finding the Fourth Proportional to 262,452.96, 393,372.15 and 100,240.64

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Solution

The fourth proportional to 262,452.96, 393,372.15 and 100,240.64 is: 150,243.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,452.96 : 393,372.15 = 100,240.64 : x
  2. Step 2: Convert to fraction form
    262,452.96/393,372.15 = 100,240.64/x
  3. Step 3: Cross multiply
    262,452.96x = 393,372.15 × 100,240.64
  4. Step 4: Simplify right side
    262,452.96x = 39,431,875,206.56
  5. Step 5: Solve for x
    x = 39,431,875,206.56/262,452.96
  6. Step 6: Final answer
    x = 150,243.59

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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.