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Finding the Fourth Proportional to 189,940.60, 284,910.90 and 189,940.60

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Solution

The fourth proportional to 189,940.60, 284,910.90 and 189,940.60 is: 284,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,940.60 : 284,910.90 = 189,940.60 : x
  2. Step 2: Convert to fraction form
    189,940.60/284,910.90 = 189,940.60/x
  3. Step 3: Cross multiply
    189,940.60x = 284,910.90 × 189,940.60
  4. Step 4: Simplify right side
    189,940.60x = 54,116,147,292.54
  5. Step 5: Solve for x
    x = 54,116,147,292.54/189,940.60
  6. Step 6: Final answer
    x = 284,910.90

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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.