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Finding the Fourth Proportional to 303,400.85, 454,968.90 and 161,211.83

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Solution

The fourth proportional to 303,400.85, 454,968.90 and 161,211.83 is: 241,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,400.85 : 454,968.90 = 161,211.83 : x
  2. Step 2: Convert to fraction form
    303,400.85/454,968.90 = 161,211.83/x
  3. Step 3: Cross multiply
    303,400.85x = 454,968.90 × 161,211.83
  4. Step 4: Simplify right side
    303,400.85x = 73,346,366,687.24
  5. Step 5: Solve for x
    x = 73,346,366,687.24/303,400.85
  6. Step 6: Final answer
    x = 241,747.40

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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.