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Finding the Fourth Proportional to 182,620.80, 274,190.40 and 112,636.80

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Solution

The fourth proportional to 182,620.80, 274,190.40 and 112,636.80 is: 169,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,620.80 : 274,190.40 = 112,636.80 : x
  2. Step 2: Convert to fraction form
    182,620.80/274,190.40 = 112,636.80/x
  3. Step 3: Cross multiply
    182,620.80x = 274,190.40 × 112,636.80
  4. Step 4: Simplify right side
    182,620.80x = 30,883,929,246.72
  5. Step 5: Solve for x
    x = 30,883,929,246.72/182,620.80
  6. Step 6: Final answer
    x = 169,115.07

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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.