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Finding the Fourth Proportional to 179,198.34, 268,621.29 and 85,682.22

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Solution

The fourth proportional to 179,198.34, 268,621.29 and 85,682.22 is: 128,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,198.34 : 268,621.29 = 85,682.22 : x
  2. Step 2: Convert to fraction form
    179,198.34/268,621.29 = 85,682.22/x
  3. Step 3: Cross multiply
    179,198.34x = 268,621.29 × 85,682.22
  4. Step 4: Simplify right side
    179,198.34x = 23,016,068,466.46
  5. Step 5: Solve for x
    x = 23,016,068,466.46/179,198.34
  6. Step 6: Final answer
    x = 128,439.07

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1.5x scale

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.