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Finding the Fourth Proportional to 179,224.40, 268,836.60 and 74,118.80

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Solution

The fourth proportional to 179,224.40, 268,836.60 and 74,118.80 is: 111,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,224.40 : 268,836.60 = 74,118.80 : x
  2. Step 2: Convert to fraction form
    179,224.40/268,836.60 = 74,118.80/x
  3. Step 3: Cross multiply
    179,224.40x = 268,836.60 × 74,118.80
  4. Step 4: Simplify right side
    179,224.40x = 19,925,846,188.08
  5. Step 5: Solve for x
    x = 19,925,846,188.08/179,224.40
  6. Step 6: Final answer
    x = 111,178.20

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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.