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Finding the Fourth Proportional to 339,039.04, 467,876.64 and 188,138.56

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Solution

The fourth proportional to 339,039.04, 467,876.64 and 188,138.56 is: 259,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,039.04 : 467,876.64 = 188,138.56 : x
  2. Step 2: Convert to fraction form
    339,039.04/467,876.64 = 188,138.56/x
  3. Step 3: Cross multiply
    339,039.04x = 467,876.64 × 188,138.56
  4. Step 4: Simplify right side
    339,039.04x = 88,025,637,307.24
  5. Step 5: Solve for x
    x = 88,025,637,307.24/339,039.04
  6. Step 6: Final answer
    x = 259,632.75

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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.