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Finding the Fourth Proportional to 222,705.28, 334,049.28 and 72,956.80

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Solution

The fourth proportional to 222,705.28, 334,049.28 and 72,956.80 is: 109,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,705.28 : 334,049.28 = 72,956.80 : x
  2. Step 2: Convert to fraction form
    222,705.28/334,049.28 = 72,956.80/x
  3. Step 3: Cross multiply
    222,705.28x = 334,049.28 × 72,956.80
  4. Step 4: Simplify right side
    222,705.28x = 24,371,166,511.10
  5. Step 5: Solve for x
    x = 24,371,166,511.10/222,705.28
  6. Step 6: Final answer
    x = 109,432.37

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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.