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Finding the Fourth Proportional to 219,375.84, 329,063.77 and 53,163.84

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Solution

The fourth proportional to 219,375.84, 329,063.77 and 53,163.84 is: 79,745.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,375.84 : 329,063.77 = 53,163.84 : x
  2. Step 2: Convert to fraction form
    219,375.84/329,063.77 = 53,163.84/x
  3. Step 3: Cross multiply
    219,375.84x = 329,063.77 × 53,163.84
  4. Step 4: Simplify right side
    219,375.84x = 17,494,294,619.47
  5. Step 5: Solve for x
    x = 17,494,294,619.47/219,375.84
  6. Step 6: Final answer
    x = 79,745.77

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1.5x scale

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.