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Finding the Fourth Proportional to 328,435.93, 492,424.66 and 168,200.51

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Solution

The fourth proportional to 328,435.93, 492,424.66 and 168,200.51 is: 252,183.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,435.93 : 492,424.66 = 168,200.51 : x
  2. Step 2: Convert to fraction form
    328,435.93/492,424.66 = 168,200.51/x
  3. Step 3: Cross multiply
    328,435.93x = 492,424.66 × 168,200.51
  4. Step 4: Simplify right side
    328,435.93x = 82,826,078,107.57
  5. Step 5: Solve for x
    x = 82,826,078,107.57/328,435.93
  6. Step 6: Final answer
    x = 252,183.37

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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.