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Finding the Fourth Proportional to 352,786.50, 486,845.37 and 193,810.50

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Solution

The fourth proportional to 352,786.50, 486,845.37 and 193,810.50 is: 267,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,786.50 : 486,845.37 = 193,810.50 : x
  2. Step 2: Convert to fraction form
    352,786.50/486,845.37 = 193,810.50/x
  3. Step 3: Cross multiply
    352,786.50x = 486,845.37 × 193,810.50
  4. Step 4: Simplify right side
    352,786.50x = 94,355,744,582.39
  5. Step 5: Solve for x
    x = 94,355,744,582.39/352,786.50
  6. Step 6: Final answer
    x = 267,458.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.