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Finding the Fourth Proportional to 312,449.22, 468,674.52 and 112,910.53

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Solution

The fourth proportional to 312,449.22, 468,674.52 and 112,910.53 is: 169,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,449.22 : 468,674.52 = 112,910.53 : x
  2. Step 2: Convert to fraction form
    312,449.22/468,674.52 = 112,910.53/x
  3. Step 3: Cross multiply
    312,449.22x = 468,674.52 × 112,910.53
  4. Step 4: Simplify right side
    312,449.22x = 52,918,289,340.11
  5. Step 5: Solve for x
    x = 52,918,289,340.11/312,449.22
  6. Step 6: Final answer
    x = 169,366.05

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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.