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Finding the Fourth Proportional to 205,296.40, 307,944.60 and 161,059.60

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Solution

The fourth proportional to 205,296.40, 307,944.60 and 161,059.60 is: 241,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,296.40 : 307,944.60 = 161,059.60 : x
  2. Step 2: Convert to fraction form
    205,296.40/307,944.60 = 161,059.60/x
  3. Step 3: Cross multiply
    205,296.40x = 307,944.60 × 161,059.60
  4. Step 4: Simplify right side
    205,296.40x = 49,597,434,098.16
  5. Step 5: Solve for x
    x = 49,597,434,098.16/205,296.40
  6. Step 6: Final answer
    x = 241,589.40

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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.