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Finding the Fourth Proportional to 168,796.90, 253,195.35 and 105,811.30

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Solution

The fourth proportional to 168,796.90, 253,195.35 and 105,811.30 is: 158,716.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,796.90 : 253,195.35 = 105,811.30 : x
  2. Step 2: Convert to fraction form
    168,796.90/253,195.35 = 105,811.30/x
  3. Step 3: Cross multiply
    168,796.90x = 253,195.35 × 105,811.30
  4. Step 4: Simplify right side
    168,796.90x = 26,790,929,137.46
  5. Step 5: Solve for x
    x = 26,790,929,137.46/168,796.90
  6. Step 6: Final answer
    x = 158,716.95

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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.