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Finding the Fourth Proportional to 603,476.48, 905,214.58 and 154,198.19

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Solution

The fourth proportional to 603,476.48, 905,214.58 and 154,198.19 is: 231,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,476.48 : 905,214.58 = 154,198.19 : x
  2. Step 2: Convert to fraction form
    603,476.48/905,214.58 = 154,198.19/x
  3. Step 3: Cross multiply
    603,476.48x = 905,214.58 × 154,198.19
  4. Step 4: Simplify right side
    603,476.48x = 139,582,449,797.61
  5. Step 5: Solve for x
    x = 139,582,449,797.61/603,476.48
  6. Step 6: Final answer
    x = 231,297.25

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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.