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Finding the Fourth Proportional to 189,112.40, 283,668.60 and 170,680.40

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Solution

The fourth proportional to 189,112.40, 283,668.60 and 170,680.40 is: 256,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,112.40 : 283,668.60 = 170,680.40 : x
  2. Step 2: Convert to fraction form
    189,112.40/283,668.60 = 170,680.40/x
  3. Step 3: Cross multiply
    189,112.40x = 283,668.60 × 170,680.40
  4. Step 4: Simplify right side
    189,112.40x = 48,416,670,115.44
  5. Step 5: Solve for x
    x = 48,416,670,115.44/189,112.40
  6. Step 6: Final answer
    x = 256,020.60

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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.