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Finding the Fourth Proportional to 321,567.52, 482,285.60 and 121,819.04

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Solution

The fourth proportional to 321,567.52, 482,285.60 and 121,819.04 is: 182,703.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,567.52 : 482,285.60 = 121,819.04 : x
  2. Step 2: Convert to fraction form
    321,567.52/482,285.60 = 121,819.04/x
  3. Step 3: Cross multiply
    321,567.52x = 482,285.60 × 121,819.04
  4. Step 4: Simplify right side
    321,567.52x = 58,751,568,797.82
  5. Step 5: Solve for x
    x = 58,751,568,797.82/321,567.52
  6. Step 6: Final answer
    x = 182,703.68

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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.