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Finding the Fourth Proportional to 339,520.57, 468,538.28 and 186,568.61

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Solution

The fourth proportional to 339,520.57, 468,538.28 and 186,568.61 is: 257,464.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,520.57 : 468,538.28 = 186,568.61 : x
  2. Step 2: Convert to fraction form
    339,520.57/468,538.28 = 186,568.61/x
  3. Step 3: Cross multiply
    339,520.57x = 468,538.28 × 186,568.61
  4. Step 4: Simplify right side
    339,520.57x = 87,414,535,869.89
  5. Step 5: Solve for x
    x = 87,414,535,869.89/339,520.57
  6. Step 6: Final answer
    x = 257,464.63

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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.