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Finding the Fourth Proportional to 219,536.55, 329,105.16 and 79,262.37

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Solution

The fourth proportional to 219,536.55, 329,105.16 and 79,262.37 is: 118,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,536.55 : 329,105.16 = 79,262.37 : x
  2. Step 2: Convert to fraction form
    219,536.55/329,105.16 = 79,262.37/x
  3. Step 3: Cross multiply
    219,536.55x = 329,105.16 × 79,262.37
  4. Step 4: Simplify right side
    219,536.55x = 26,085,654,960.83
  5. Step 5: Solve for x
    x = 26,085,654,960.83/219,536.55
  6. Step 6: Final answer
    x = 118,821.47

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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.