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Finding the Fourth Proportional to 304,061.20, 419,601.64 and 168,103.60

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Solution

The fourth proportional to 304,061.20, 419,601.64 and 168,103.60 is: 231,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,061.20 : 419,601.64 = 168,103.60 : x
  2. Step 2: Convert to fraction form
    304,061.20/419,601.64 = 168,103.60/x
  3. Step 3: Cross multiply
    304,061.20x = 419,601.64 × 168,103.60
  4. Step 4: Simplify right side
    304,061.20x = 70,536,546,249.90
  5. Step 5: Solve for x
    x = 70,536,546,249.90/304,061.20
  6. Step 6: Final answer
    x = 231,981.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.