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Finding the Fourth Proportional to 178,820.20, 268,230.30 and 119,722.60

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Solution

The fourth proportional to 178,820.20, 268,230.30 and 119,722.60 is: 179,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,820.20 : 268,230.30 = 119,722.60 : x
  2. Step 2: Convert to fraction form
    178,820.20/268,230.30 = 119,722.60/x
  3. Step 3: Cross multiply
    178,820.20x = 268,230.30 × 119,722.60
  4. Step 4: Simplify right side
    178,820.20x = 32,113,228,914.78
  5. Step 5: Solve for x
    x = 32,113,228,914.78/178,820.20
  6. Step 6: Final answer
    x = 179,583.90

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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.