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Finding the Fourth Proportional to 262,586.80, 394,074.60 and 173,810.80

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Solution

The fourth proportional to 262,586.80, 394,074.60 and 173,810.80 is: 260,844.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,586.80 : 394,074.60 = 173,810.80 : x
  2. Step 2: Convert to fraction form
    262,586.80/394,074.60 = 173,810.80/x
  3. Step 3: Cross multiply
    262,586.80x = 394,074.60 × 173,810.80
  4. Step 4: Simplify right side
    262,586.80x = 68,494,421,485.68
  5. Step 5: Solve for x
    x = 68,494,421,485.68/262,586.80
  6. Step 6: Final answer
    x = 260,844.88

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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.