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Finding the Fourth Proportional to 339,672.96, 468,737.28 and 188,766.72

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Solution

The fourth proportional to 339,672.96, 468,737.28 and 188,766.72 is: 260,491.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,672.96 : 468,737.28 = 188,766.72 : x
  2. Step 2: Convert to fraction form
    339,672.96/468,737.28 = 188,766.72/x
  3. Step 3: Cross multiply
    339,672.96x = 468,737.28 × 188,766.72
  4. Step 4: Simplify right side
    339,672.96x = 88,481,998,887.32
  5. Step 5: Solve for x
    x = 88,481,998,887.32/339,672.96
  6. Step 6: Final answer
    x = 260,491.74

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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.