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Finding the Fourth Proportional to 603,846.05, 905,748.31 and 154,570.81

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Solution

The fourth proportional to 603,846.05, 905,748.31 and 154,570.81 is: 231,850.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,846.05 : 905,748.31 = 154,570.81 : x
  2. Step 2: Convert to fraction form
    603,846.05/905,748.31 = 154,570.81/x
  3. Step 3: Cross multiply
    603,846.05x = 905,748.31 × 154,570.81
  4. Step 4: Simplify right side
    603,846.05x = 140,002,244,631.24
  5. Step 5: Solve for x
    x = 140,002,244,631.24/603,846.05
  6. Step 6: Final answer
    x = 231,850.89

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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.