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Finding the Fourth Proportional to 303,903.10, 419,411.52 and 167,963.59

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Solution

The fourth proportional to 303,903.10, 419,411.52 and 167,963.59 is: 231,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,903.10 : 419,411.52 = 167,963.59 : x
  2. Step 2: Convert to fraction form
    303,903.10/419,411.52 = 167,963.59/x
  3. Step 3: Cross multiply
    303,903.10x = 419,411.52 × 167,963.59
  4. Step 4: Simplify right side
    303,903.10x = 70,445,864,586.56
  5. Step 5: Solve for x
    x = 70,445,864,586.56/303,903.10
  6. Step 6: Final answer
    x = 231,803.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.