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Finding the Fourth Proportional to 149,992.40, 224,729.40 and 126,664.40

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Solution

The fourth proportional to 149,992.40, 224,729.40 and 126,664.40 is: 189,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,992.40 : 224,729.40 = 126,664.40 : x
  2. Step 2: Convert to fraction form
    149,992.40/224,729.40 = 126,664.40/x
  3. Step 3: Cross multiply
    149,992.40x = 224,729.40 × 126,664.40
  4. Step 4: Simplify right side
    149,992.40x = 28,465,214,613.36
  5. Step 5: Solve for x
    x = 28,465,214,613.36/149,992.40
  6. Step 6: Final answer
    x = 189,777.71

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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.