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Finding the Fourth Proportional to 262,229.40, 361,783.26 and 154,745.64

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Solution

The fourth proportional to 262,229.40, 361,783.26 and 154,745.64 is: 213,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,229.40 : 361,783.26 = 154,745.64 : x
  2. Step 2: Convert to fraction form
    262,229.40/361,783.26 = 154,745.64/x
  3. Step 3: Cross multiply
    262,229.40x = 361,783.26 × 154,745.64
  4. Step 4: Simplify right side
    262,229.40x = 55,984,382,109.99
  5. Step 5: Solve for x
    x = 55,984,382,109.99/262,229.40
  6. Step 6: Final answer
    x = 213,493.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.