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Finding the Fourth Proportional to 344,103.70, 515,903.91 and 231,503.98

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Solution

The fourth proportional to 344,103.70, 515,903.91 and 231,503.98 is: 347,086.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,103.70 : 515,903.91 = 231,503.98 : x
  2. Step 2: Convert to fraction form
    344,103.70/515,903.91 = 231,503.98/x
  3. Step 3: Cross multiply
    344,103.70x = 515,903.91 × 231,503.98
  4. Step 4: Simplify right side
    344,103.70x = 119,433,808,462.56
  5. Step 5: Solve for x
    x = 119,433,808,462.56/344,103.70
  6. Step 6: Final answer
    x = 347,086.67

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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.