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Finding the Fourth Proportional to 192,817.20, 289,225.80 and 188,880.60

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Solution

The fourth proportional to 192,817.20, 289,225.80 and 188,880.60 is: 283,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,817.20 : 289,225.80 = 188,880.60 : x
  2. Step 2: Convert to fraction form
    192,817.20/289,225.80 = 188,880.60/x
  3. Step 3: Cross multiply
    192,817.20x = 289,225.80 × 188,880.60
  4. Step 4: Simplify right side
    192,817.20x = 54,629,142,639.48
  5. Step 5: Solve for x
    x = 54,629,142,639.48/192,817.20
  6. Step 6: Final answer
    x = 283,320.90

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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.