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Finding the Fourth Proportional to 304,490.90, 456,611.48 and 91,183.68

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Solution

The fourth proportional to 304,490.90, 456,611.48 and 91,183.68 is: 136,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,490.90 : 456,611.48 = 91,183.68 : x
  2. Step 2: Convert to fraction form
    304,490.90/456,611.48 = 91,183.68/x
  3. Step 3: Cross multiply
    304,490.90x = 456,611.48 × 91,183.68
  4. Step 4: Simplify right side
    304,490.90x = 41,635,515,076.65
  5. Step 5: Solve for x
    x = 41,635,515,076.65/304,490.90
  6. Step 6: Final answer
    x = 136,738.13

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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.