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Finding the Fourth Proportional to 193,408.56, 266,903.10 and 108,525.42

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Solution

The fourth proportional to 193,408.56, 266,903.10 and 108,525.42 is: 149,764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,408.56 : 266,903.10 = 108,525.42 : x
  2. Step 2: Convert to fraction form
    193,408.56/266,903.10 = 108,525.42/x
  3. Step 3: Cross multiply
    193,408.56x = 266,903.10 × 108,525.42
  4. Step 4: Simplify right side
    193,408.56x = 28,965,771,026.80
  5. Step 5: Solve for x
    x = 28,965,771,026.80/193,408.56
  6. Step 6: Final answer
    x = 149,764.68

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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.