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Finding the Fourth Proportional to 101,493.27, 140,055.89 and 55,551.90

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Solution

The fourth proportional to 101,493.27, 140,055.89 and 55,551.90 is: 76,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,493.27 : 140,055.89 = 55,551.90 : x
  2. Step 2: Convert to fraction form
    101,493.27/140,055.89 = 55,551.90/x
  3. Step 3: Cross multiply
    101,493.27x = 140,055.89 × 55,551.90
  4. Step 4: Simplify right side
    101,493.27x = 7,780,370,795.69
  5. Step 5: Solve for x
    x = 7,780,370,795.69/101,493.27
  6. Step 6: Final answer
    x = 76,658.98

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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.