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Finding the Fourth Proportional to 303,469.62, 418,758.20 and 167,494.79

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Solution

The fourth proportional to 303,469.62, 418,758.20 and 167,494.79 is: 231,126.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,469.62 : 418,758.20 = 167,494.79 : x
  2. Step 2: Convert to fraction form
    303,469.62/418,758.20 = 167,494.79/x
  3. Step 3: Cross multiply
    303,469.62x = 418,758.20 × 167,494.79
  4. Step 4: Simplify right side
    303,469.62x = 70,139,813,838.51
  5. Step 5: Solve for x
    x = 70,139,813,838.51/303,469.62
  6. Step 6: Final answer
    x = 231,126.31

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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.