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Finding the Fourth Proportional to 209,296.88, 313,945.32 and 61,552.88

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Solution

The fourth proportional to 209,296.88, 313,945.32 and 61,552.88 is: 92,329.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,296.88 : 313,945.32 = 61,552.88 : x
  2. Step 2: Convert to fraction form
    209,296.88/313,945.32 = 61,552.88/x
  3. Step 3: Cross multiply
    209,296.88x = 313,945.32 × 61,552.88
  4. Step 4: Simplify right side
    209,296.88x = 19,324,238,608.52
  5. Step 5: Solve for x
    x = 19,324,238,608.52/209,296.88
  6. Step 6: Final answer
    x = 92,329.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.