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Finding the Fourth Proportional to 199,394.92, 298,389.79 and 124,550.31

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Solution

The fourth proportional to 199,394.92, 298,389.79 and 124,550.31 is: 186,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,394.92 : 298,389.79 = 124,550.31 : x
  2. Step 2: Convert to fraction form
    199,394.92/298,389.79 = 124,550.31/x
  3. Step 3: Cross multiply
    199,394.92x = 298,389.79 × 124,550.31
  4. Step 4: Simplify right side
    199,394.92x = 37,164,540,845.33
  5. Step 5: Solve for x
    x = 37,164,540,845.33/199,394.92
  6. Step 6: Final answer
    x = 186,386.60

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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.