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Finding the Fourth Proportional to 234,855.64, 352,198.50 and 99,928.72

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Solution

The fourth proportional to 234,855.64, 352,198.50 and 99,928.72 is: 149,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,855.64 : 352,198.50 = 99,928.72 : x
  2. Step 2: Convert to fraction form
    234,855.64/352,198.50 = 99,928.72/x
  3. Step 3: Cross multiply
    234,855.64x = 352,198.50 × 99,928.72
  4. Step 4: Simplify right side
    234,855.64x = 35,194,745,290.92
  5. Step 5: Solve for x
    x = 35,194,745,290.92/234,855.64
  6. Step 6: Final answer
    x = 149,856.93

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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.