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Finding the Fourth Proportional to 323,138.33, 484,928.91 and 112,776.27

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Solution

The fourth proportional to 323,138.33, 484,928.91 and 112,776.27 is: 169,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,138.33 : 484,928.91 = 112,776.27 : x
  2. Step 2: Convert to fraction form
    323,138.33/484,928.91 = 112,776.27/x
  3. Step 3: Cross multiply
    323,138.33x = 484,928.91 × 112,776.27
  4. Step 4: Simplify right side
    323,138.33x = 54,688,471,866.48
  5. Step 5: Solve for x
    x = 54,688,471,866.48/323,138.33
  6. Step 6: Final answer
    x = 169,241.67

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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.