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Finding the Fourth Proportional to 488,687.40, 733,031.10 and 173,176.20

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Solution

The fourth proportional to 488,687.40, 733,031.10 and 173,176.20 is: 259,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,687.40 : 733,031.10 = 173,176.20 : x
  2. Step 2: Convert to fraction form
    488,687.40/733,031.10 = 173,176.20/x
  3. Step 3: Cross multiply
    488,687.40x = 733,031.10 × 173,176.20
  4. Step 4: Simplify right side
    488,687.40x = 126,943,540,379.82
  5. Step 5: Solve for x
    x = 126,943,540,379.82/488,687.40
  6. Step 6: Final answer
    x = 259,764.30

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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.