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Finding the Fourth Proportional to 326,174.24, 489,310 and 115,794.56

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Solution

The fourth proportional to 326,174.24, 489,310 and 115,794.56 is: 173,709.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,174.24 : 489,310 = 115,794.56 : x
  2. Step 2: Convert to fraction form
    326,174.24/489,310 = 115,794.56/x
  3. Step 3: Cross multiply
    326,174.24x = 489,310 × 115,794.56
  4. Step 4: Simplify right side
    326,174.24x = 56,659,436,153.60
  5. Step 5: Solve for x
    x = 56,659,436,153.60/326,174.24
  6. Step 6: Final answer
    x = 173,709.11

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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.