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Finding the Fourth Proportional to 312,449.25, 468,674.57 and 112,910.56

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Solution

The fourth proportional to 312,449.25, 468,674.57 and 112,910.56 is: 169,366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,449.25 : 468,674.57 = 112,910.56 : x
  2. Step 2: Convert to fraction form
    312,449.25/468,674.57 = 112,910.56/x
  3. Step 3: Cross multiply
    312,449.25x = 468,674.57 × 112,910.56
  4. Step 4: Simplify right side
    312,449.25x = 52,918,309,268.22
  5. Step 5: Solve for x
    x = 52,918,309,268.22/312,449.25
  6. Step 6: Final answer
    x = 169,366.09

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1.5x scale

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.