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Finding the Fourth Proportional to 303,136.66, 418,323.06 and 167,183.16

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Solution

The fourth proportional to 303,136.66, 418,323.06 and 167,183.16 is: 230,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,136.66 : 418,323.06 = 167,183.16 : x
  2. Step 2: Convert to fraction form
    303,136.66/418,323.06 = 167,183.16/x
  3. Step 3: Cross multiply
    303,136.66x = 418,323.06 × 167,183.16
  4. Step 4: Simplify right side
    303,136.66x = 69,936,571,071.67
  5. Step 5: Solve for x
    x = 69,936,571,071.67/303,136.66
  6. Step 6: Final answer
    x = 230,709.71

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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.