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Finding the Fourth Proportional to 298,976.08, 448,465.74 and 74,336.52

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Solution

The fourth proportional to 298,976.08, 448,465.74 and 74,336.52 is: 111,505.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,976.08 : 448,465.74 = 74,336.52 : x
  2. Step 2: Convert to fraction form
    298,976.08/448,465.74 = 74,336.52/x
  3. Step 3: Cross multiply
    298,976.08x = 448,465.74 × 74,336.52
  4. Step 4: Simplify right side
    298,976.08x = 33,337,382,450.82
  5. Step 5: Solve for x
    x = 33,337,382,450.82/298,976.08
  6. Step 6: Final answer
    x = 111,505.18

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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.