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Finding the Fourth Proportional to 312,449.02, 468,674.21 and 112,910.33

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Solution

The fourth proportional to 312,449.02, 468,674.21 and 112,910.33 is: 169,365.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,449.02 : 468,674.21 = 112,910.33 : x
  2. Step 2: Convert to fraction form
    312,449.02/468,674.21 = 112,910.33/x
  3. Step 3: Cross multiply
    312,449.02x = 468,674.21 × 112,910.33
  4. Step 4: Simplify right side
    312,449.02x = 52,918,161,167.55
  5. Step 5: Solve for x
    x = 52,918,161,167.55/312,449.02
  6. Step 6: Final answer
    x = 169,365.75

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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.