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Finding the Fourth Proportional to 323,012.81, 484,523.32 and 112,650.75

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Solution

The fourth proportional to 323,012.81, 484,523.32 and 112,650.75 is: 168,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,012.81 : 484,523.32 = 112,650.75 : x
  2. Step 2: Convert to fraction form
    323,012.81/484,523.32 = 112,650.75/x
  3. Step 3: Cross multiply
    323,012.81x = 484,523.32 × 112,650.75
  4. Step 4: Simplify right side
    323,012.81x = 54,581,915,320.08
  5. Step 5: Solve for x
    x = 54,581,915,320.08/323,012.81
  6. Step 6: Final answer
    x = 168,977.56

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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.