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Finding the Fourth Proportional to 321,363.36, 482,344.02 and 163,709.82

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Solution

The fourth proportional to 321,363.36, 482,344.02 and 163,709.82 is: 245,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,363.36 : 482,344.02 = 163,709.82 : x
  2. Step 2: Convert to fraction form
    321,363.36/482,344.02 = 163,709.82/x
  3. Step 3: Cross multiply
    321,363.36x = 482,344.02 × 163,709.82
  4. Step 4: Simplify right side
    321,363.36x = 78,964,452,692.28
  5. Step 5: Solve for x
    x = 78,964,452,692.28/321,363.36
  6. Step 6: Final answer
    x = 245,717.04

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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.