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Finding the Fourth Proportional to 298,674.70, 448,012.05 and 188,082.70

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Solution

The fourth proportional to 298,674.70, 448,012.05 and 188,082.70 is: 282,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,674.70 : 448,012.05 = 188,082.70 : x
  2. Step 2: Convert to fraction form
    298,674.70/448,012.05 = 188,082.70/x
  3. Step 3: Cross multiply
    298,674.70x = 448,012.05 × 188,082.70
  4. Step 4: Simplify right side
    298,674.70x = 84,263,315,996.54
  5. Step 5: Solve for x
    x = 84,263,315,996.54/298,674.70
  6. Step 6: Final answer
    x = 282,124.05

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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.