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Finding the Fourth Proportional to 303,406.62, 454,977.60 and 161,217.66

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Solution

The fourth proportional to 303,406.62, 454,977.60 and 161,217.66 is: 241,756.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,406.62 : 454,977.60 = 161,217.66 : x
  2. Step 2: Convert to fraction form
    303,406.62/454,977.60 = 161,217.66/x
  3. Step 3: Cross multiply
    303,406.62x = 454,977.60 × 161,217.66
  4. Step 4: Simplify right side
    303,406.62x = 73,350,424,024.42
  5. Step 5: Solve for x
    x = 73,350,424,024.42/303,406.62
  6. Step 6: Final answer
    x = 241,756.18

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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.