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Finding the Fourth Proportional to 303,768.07, 419,203.83 and 167,801.47

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Solution

The fourth proportional to 303,768.07, 419,203.83 and 167,801.47 is: 231,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,768.07 : 419,203.83 = 167,801.47 : x
  2. Step 2: Convert to fraction form
    303,768.07/419,203.83 = 167,801.47/x
  3. Step 3: Cross multiply
    303,768.07x = 419,203.83 × 167,801.47
  4. Step 4: Simplify right side
    303,768.07x = 70,343,018,903.63
  5. Step 5: Solve for x
    x = 70,343,018,903.63/303,768.07
  6. Step 6: Final answer
    x = 231,568.18

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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.