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Finding the Fourth Proportional to 219,381.41, 329,072.12 and 53,169.41

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Solution

The fourth proportional to 219,381.41, 329,072.12 and 53,169.41 is: 79,754.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,381.41 : 329,072.12 = 53,169.41 : x
  2. Step 2: Convert to fraction form
    219,381.41/329,072.12 = 53,169.41/x
  3. Step 3: Cross multiply
    219,381.41x = 329,072.12 × 53,169.41
  4. Step 4: Simplify right side
    219,381.41x = 17,496,570,467.85
  5. Step 5: Solve for x
    x = 17,496,570,467.85/219,381.41
  6. Step 6: Final answer
    x = 79,754.12

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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.