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Finding the Fourth Proportional to 321,042.49, 481,120.86 and 242,069.92

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Solution

The fourth proportional to 321,042.49, 481,120.86 and 242,069.92 is: 362,770.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,042.49 : 481,120.86 = 242,069.92 : x
  2. Step 2: Convert to fraction form
    321,042.49/481,120.86 = 242,069.92/x
  3. Step 3: Cross multiply
    321,042.49x = 481,120.86 × 242,069.92
  4. Step 4: Simplify right side
    321,042.49x = 116,464,887,795.49
  5. Step 5: Solve for x
    x = 116,464,887,795.49/321,042.49
  6. Step 6: Final answer
    x = 362,770.95

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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.