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Finding the Fourth Proportional to 446,514.60, 669,858.30 and 130,981.80

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Solution

The fourth proportional to 446,514.60, 669,858.30 and 130,981.80 is: 196,498.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,514.60 : 669,858.30 = 130,981.80 : x
  2. Step 2: Convert to fraction form
    446,514.60/669,858.30 = 130,981.80/x
  3. Step 3: Cross multiply
    446,514.60x = 669,858.30 × 130,981.80
  4. Step 4: Simplify right side
    446,514.60x = 87,739,245,878.94
  5. Step 5: Solve for x
    x = 87,739,245,878.94/446,514.60
  6. Step 6: Final answer
    x = 196,498.04

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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.