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Finding the Fourth Proportional to 193,111.56, 266,493.60 and 108,228.60

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Solution

The fourth proportional to 193,111.56, 266,493.60 and 108,228.60 is: 149,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,111.56 : 266,493.60 = 108,228.60 : x
  2. Step 2: Convert to fraction form
    193,111.56/266,493.60 = 108,228.60/x
  3. Step 3: Cross multiply
    193,111.56x = 266,493.60 × 108,228.60
  4. Step 4: Simplify right side
    193,111.56x = 28,842,229,236.96
  5. Step 5: Solve for x
    x = 28,842,229,236.96/193,111.56
  6. Step 6: Final answer
    x = 149,355.27

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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.