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Finding the Fourth Proportional to 219,891.22, 329,836.02 and 79,617.04

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Solution

The fourth proportional to 219,891.22, 329,836.02 and 79,617.04 is: 119,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,891.22 : 329,836.02 = 79,617.04 : x
  2. Step 2: Convert to fraction form
    219,891.22/329,836.02 = 79,617.04/x
  3. Step 3: Cross multiply
    219,891.22x = 329,836.02 × 79,617.04
  4. Step 4: Simplify right side
    219,891.22x = 26,260,567,597.78
  5. Step 5: Solve for x
    x = 26,260,567,597.78/219,891.22
  6. Step 6: Final answer
    x = 119,425.27

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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.