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Finding the Fourth Proportional to 339,115, 468,000.57 and 188,212

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Solution

The fourth proportional to 339,115, 468,000.57 and 188,212 is: 259,744.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,115 : 468,000.57 = 188,212 : x
  2. Step 2: Convert to fraction form
    339,115/468,000.57 = 188,212/x
  3. Step 3: Cross multiply
    339,115x = 468,000.57 × 188,212
  4. Step 4: Simplify right side
    339,115x = 88,083,323,280.84
  5. Step 5: Solve for x
    x = 88,083,323,280.84/339,115
  6. Step 6: Final answer
    x = 259,744.70

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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.