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Finding the Fourth Proportional to 603,348.61, 905,022.13 and 154,069.26

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Solution

The fourth proportional to 603,348.61, 905,022.13 and 154,069.26 is: 231,103.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,348.61 : 905,022.13 = 154,069.26 : x
  2. Step 2: Convert to fraction form
    603,348.61/905,022.13 = 154,069.26/x
  3. Step 3: Cross multiply
    603,348.61x = 905,022.13 × 154,069.26
  4. Step 4: Simplify right side
    603,348.61x = 139,436,089,852.72
  5. Step 5: Solve for x
    x = 139,436,089,852.72/603,348.61
  6. Step 6: Final answer
    x = 231,103.69

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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.