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Finding the Fourth Proportional to 197,911.87, 297,024.54 and 103,169.21

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Solution

The fourth proportional to 197,911.87, 297,024.54 and 103,169.21 is: 154,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,911.87 : 297,024.54 = 103,169.21 : x
  2. Step 2: Convert to fraction form
    197,911.87/297,024.54 = 103,169.21/x
  3. Step 3: Cross multiply
    197,911.87x = 297,024.54 × 103,169.21
  4. Step 4: Simplify right side
    197,911.87x = 30,643,787,142.41
  5. Step 5: Solve for x
    x = 30,643,787,142.41/197,911.87
  6. Step 6: Final answer
    x = 154,835.52

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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.