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Finding the Fourth Proportional to 199,188.40, 298,782.60 and 80,863.60

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Solution

The fourth proportional to 199,188.40, 298,782.60 and 80,863.60 is: 121,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,188.40 : 298,782.60 = 80,863.60 : x
  2. Step 2: Convert to fraction form
    199,188.40/298,782.60 = 80,863.60/x
  3. Step 3: Cross multiply
    199,188.40x = 298,782.60 × 80,863.60
  4. Step 4: Simplify right side
    199,188.40x = 24,160,636,653.36
  5. Step 5: Solve for x
    x = 24,160,636,653.36/199,188.40
  6. Step 6: Final answer
    x = 121,295.40

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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.