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Finding the Fourth Proportional to 330,663.84, 496,059.60 and 141,121.44

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Solution

The fourth proportional to 330,663.84, 496,059.60 and 141,121.44 is: 211,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,663.84 : 496,059.60 = 141,121.44 : x
  2. Step 2: Convert to fraction form
    330,663.84/496,059.60 = 141,121.44/x
  3. Step 3: Cross multiply
    330,663.84x = 496,059.60 × 141,121.44
  4. Step 4: Simplify right side
    330,663.84x = 70,004,645,077.82
  5. Step 5: Solve for x
    x = 70,004,645,077.82/330,663.84
  6. Step 6: Final answer
    x = 211,709.41

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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.