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Finding the Fourth Proportional to 339,432.50, 468,431.44 and 188,529.50

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Solution

The fourth proportional to 339,432.50, 468,431.44 and 188,529.50 is: 260,178.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,432.50 : 468,431.44 = 188,529.50 : x
  2. Step 2: Convert to fraction form
    339,432.50/468,431.44 = 188,529.50/x
  3. Step 3: Cross multiply
    339,432.50x = 468,431.44 × 188,529.50
  4. Step 4: Simplify right side
    339,432.50x = 88,313,145,167.48
  5. Step 5: Solve for x
    x = 88,313,145,167.48/339,432.50
  6. Step 6: Final answer
    x = 260,178.81

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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.