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Finding the Fourth Proportional to 219,479.62, 329,238.87 and 61,709.44

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Solution

The fourth proportional to 219,479.62, 329,238.87 and 61,709.44 is: 92,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,479.62 : 329,238.87 = 61,709.44 : x
  2. Step 2: Convert to fraction form
    219,479.62/329,238.87 = 61,709.44/x
  3. Step 3: Cross multiply
    219,479.62x = 329,238.87 × 61,709.44
  4. Step 4: Simplify right side
    219,479.62x = 20,317,146,293.93
  5. Step 5: Solve for x
    x = 20,317,146,293.93/219,479.62
  6. Step 6: Final answer
    x = 92,569.63

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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.