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Finding the Fourth Proportional to 197,138.40, 276,693.60 and 197,138.40

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Solution

The fourth proportional to 197,138.40, 276,693.60 and 197,138.40 is: 276,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,138.40 : 276,693.60 = 197,138.40 : x
  2. Step 2: Convert to fraction form
    197,138.40/276,693.60 = 197,138.40/x
  3. Step 3: Cross multiply
    197,138.40x = 276,693.60 × 197,138.40
  4. Step 4: Simplify right side
    197,138.40x = 54,546,933,594.24
  5. Step 5: Solve for x
    x = 54,546,933,594.24/197,138.40
  6. Step 6: Final answer
    x = 276,693.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.