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Finding the Fourth Proportional to 328,436.93, 492,426.15 and 168,201.51

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Solution

The fourth proportional to 328,436.93, 492,426.15 and 168,201.51 is: 252,184.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,436.93 : 492,426.15 = 168,201.51 : x
  2. Step 2: Convert to fraction form
    328,436.93/492,426.15 = 168,201.51/x
  3. Step 3: Cross multiply
    328,436.93x = 492,426.15 × 168,201.51
  4. Step 4: Simplify right side
    328,436.93x = 82,826,821,993.49
  5. Step 5: Solve for x
    x = 82,826,821,993.49/328,436.93
  6. Step 6: Final answer
    x = 252,184.86

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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.