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Finding the Fourth Proportional to 362,105.40, 543,206.70 and 125,520.60

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Solution

The fourth proportional to 362,105.40, 543,206.70 and 125,520.60 is: 188,297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,105.40 : 543,206.70 = 125,520.60 : x
  2. Step 2: Convert to fraction form
    362,105.40/543,206.70 = 125,520.60/x
  3. Step 3: Cross multiply
    362,105.40x = 543,206.70 × 125,520.60
  4. Step 4: Simplify right side
    362,105.40x = 68,183,630,908.02
  5. Step 5: Solve for x
    x = 68,183,630,908.02/362,105.40
  6. Step 6: Final answer
    x = 188,297.75

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1.5x scale

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.