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Finding the Fourth Proportional to 219,676.88, 329,540.92 and 79,501.52

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Solution

The fourth proportional to 219,676.88, 329,540.92 and 79,501.52 is: 119,261.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,676.88 : 329,540.92 = 79,501.52 : x
  2. Step 2: Convert to fraction form
    219,676.88/329,540.92 = 79,501.52/x
  3. Step 3: Cross multiply
    219,676.88x = 329,540.92 × 79,501.52
  4. Step 4: Simplify right side
    219,676.88x = 26,199,004,042.20
  5. Step 5: Solve for x
    x = 26,199,004,042.20/219,676.88
  6. Step 6: Final answer
    x = 119,261.54

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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.