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Finding the Fourth Proportional to 329,321.39, 493,645.55 and 186,865.70

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Solution

The fourth proportional to 329,321.39, 493,645.55 and 186,865.70 is: 280,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,321.39 : 493,645.55 = 186,865.70 : x
  2. Step 2: Convert to fraction form
    329,321.39/493,645.55 = 186,865.70/x
  3. Step 3: Cross multiply
    329,321.39x = 493,645.55 × 186,865.70
  4. Step 4: Simplify right side
    329,321.39x = 92,245,417,850.08
  5. Step 5: Solve for x
    x = 92,245,417,850.08/329,321.39
  6. Step 6: Final answer
    x = 280,107.59

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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.