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Finding the Fourth Proportional to 264,662.16, 396,990 and 124,321.56

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Solution

The fourth proportional to 264,662.16, 396,990 and 124,321.56 is: 186,480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,662.16 : 396,990 = 124,321.56 : x
  2. Step 2: Convert to fraction form
    264,662.16/396,990 = 124,321.56/x
  3. Step 3: Cross multiply
    264,662.16x = 396,990 × 124,321.56
  4. Step 4: Simplify right side
    264,662.16x = 49,354,416,104.40
  5. Step 5: Solve for x
    x = 49,354,416,104.40/264,662.16
  6. Step 6: Final answer
    x = 186,480.82

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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.