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Finding the Fourth Proportional to 55,604.97, 83,372.40 and 47,174.41

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Solution

The fourth proportional to 55,604.97, 83,372.40 and 47,174.41 is: 70,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,604.97 : 83,372.40 = 47,174.41 : x
  2. Step 2: Convert to fraction form
    55,604.97/83,372.40 = 47,174.41/x
  3. Step 3: Cross multiply
    55,604.97x = 83,372.40 × 47,174.41
  4. Step 4: Simplify right side
    55,604.97x = 3,933,043,780.28
  5. Step 5: Solve for x
    x = 3,933,043,780.28/55,604.97
  6. Step 6: Final answer
    x = 70,731.87

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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.