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Finding the Fourth Proportional to 281,817.20, 422,783.40 and 94,847.60

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Solution

The fourth proportional to 281,817.20, 422,783.40 and 94,847.60 is: 142,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,817.20 : 422,783.40 = 94,847.60 : x
  2. Step 2: Convert to fraction form
    281,817.20/422,783.40 = 94,847.60/x
  3. Step 3: Cross multiply
    281,817.20x = 422,783.40 × 94,847.60
  4. Step 4: Simplify right side
    281,817.20x = 40,099,990,809.84
  5. Step 5: Solve for x
    x = 40,099,990,809.84/281,817.20
  6. Step 6: Final answer
    x = 142,290.79

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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.