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Finding the Fourth Proportional to 199,539.70, 298,906.35 and 124,429.30

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Solution

The fourth proportional to 199,539.70, 298,906.35 and 124,429.30 is: 186,392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,539.70 : 298,906.35 = 124,429.30 : x
  2. Step 2: Convert to fraction form
    199,539.70/298,906.35 = 124,429.30/x
  3. Step 3: Cross multiply
    199,539.70x = 298,906.35 × 124,429.30
  4. Step 4: Simplify right side
    199,539.70x = 37,192,707,896.06
  5. Step 5: Solve for x
    x = 37,192,707,896.06/199,539.70
  6. Step 6: Final answer
    x = 186,392.52

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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.