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Finding the Fourth Proportional to 664,137.20, 996,098.88 and 190,714.88

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Solution

The fourth proportional to 664,137.20, 996,098.88 and 190,714.88 is: 286,041.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,137.20 : 996,098.88 = 190,714.88 : x
  2. Step 2: Convert to fraction form
    664,137.20/996,098.88 = 190,714.88/x
  3. Step 3: Cross multiply
    664,137.20x = 996,098.88 × 190,714.88
  4. Step 4: Simplify right side
    664,137.20x = 189,970,878,367.33
  5. Step 5: Solve for x
    x = 189,970,878,367.33/664,137.20
  6. Step 6: Final answer
    x = 286,041.62

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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.