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Finding the Fourth Proportional to 328,584.36, 492,924.90 and 103,893.96

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Solution

The fourth proportional to 328,584.36, 492,924.90 and 103,893.96 is: 155,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,584.36 : 492,924.90 = 103,893.96 : x
  2. Step 2: Convert to fraction form
    328,584.36/492,924.90 = 103,893.96/x
  3. Step 3: Cross multiply
    328,584.36x = 492,924.90 × 103,893.96
  4. Step 4: Simplify right side
    328,584.36x = 51,211,919,843.60
  5. Step 5: Solve for x
    x = 51,211,919,843.60/328,584.36
  6. Step 6: Final answer
    x = 155,856.23

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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.