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Finding the Fourth Proportional to 322,928.70, 484,174.35 and 165,027.30

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Solution

The fourth proportional to 322,928.70, 484,174.35 and 165,027.30 is: 247,429.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,928.70 : 484,174.35 = 165,027.30 : x
  2. Step 2: Convert to fraction form
    322,928.70/484,174.35 = 165,027.30/x
  3. Step 3: Cross multiply
    322,928.70x = 484,174.35 × 165,027.30
  4. Step 4: Simplify right side
    322,928.70x = 79,901,985,709.76
  5. Step 5: Solve for x
    x = 79,901,985,709.76/322,928.70
  6. Step 6: Final answer
    x = 247,429.19

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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.