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Finding the Fourth Proportional to 148,408.79, 222,610.79 and 47,205.38

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Solution

The fourth proportional to 148,408.79, 222,610.79 and 47,205.38 is: 70,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,408.79 : 222,610.79 = 47,205.38 : x
  2. Step 2: Convert to fraction form
    148,408.79/222,610.79 = 47,205.38/x
  3. Step 3: Cross multiply
    148,408.79x = 222,610.79 × 47,205.38
  4. Step 4: Simplify right side
    148,408.79x = 10,508,425,584.97
  5. Step 5: Solve for x
    x = 10,508,425,584.97/148,408.79
  6. Step 6: Final answer
    x = 70,807.30

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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.