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Finding the Fourth Proportional to 79,747.54, 110,055.34 and 47,474.86

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Solution

The fourth proportional to 79,747.54, 110,055.34 and 47,474.86 is: 65,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,747.54 : 110,055.34 = 47,474.86 : x
  2. Step 2: Convert to fraction form
    79,747.54/110,055.34 = 47,474.86/x
  3. Step 3: Cross multiply
    79,747.54x = 110,055.34 × 47,474.86
  4. Step 4: Simplify right side
    79,747.54x = 5,224,861,849.31
  5. Step 5: Solve for x
    x = 5,224,861,849.31/79,747.54
  6. Step 6: Final answer
    x = 65,517.53

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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.