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Finding the Fourth Proportional to 488,721.80, 733,212.30 and 173,145.80

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Solution

The fourth proportional to 488,721.80, 733,212.30 and 173,145.80 is: 259,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,721.80 : 733,212.30 = 173,145.80 : x
  2. Step 2: Convert to fraction form
    488,721.80/733,212.30 = 173,145.80/x
  3. Step 3: Cross multiply
    488,721.80x = 733,212.30 × 173,145.80
  4. Step 4: Simplify right side
    488,721.80x = 126,952,630,253.34
  5. Step 5: Solve for x
    x = 126,952,630,253.34/488,721.80
  6. Step 6: Final answer
    x = 259,764.62

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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.