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Finding the Fourth Proportional to 311,556.08, 467,333.96 and 74,898.70

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Solution

The fourth proportional to 311,556.08, 467,333.96 and 74,898.70 is: 112,348.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,556.08 : 467,333.96 = 74,898.70 : x
  2. Step 2: Convert to fraction form
    311,556.08/467,333.96 = 74,898.70/x
  3. Step 3: Cross multiply
    311,556.08x = 467,333.96 × 74,898.70
  4. Step 4: Simplify right side
    311,556.08x = 35,002,704,527.02
  5. Step 5: Solve for x
    x = 35,002,704,527.02/311,556.08
  6. Step 6: Final answer
    x = 112,348.01

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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.