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Finding the Fourth Proportional to 71,558.58, 98,751.06 and 39,727.56

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Solution

The fourth proportional to 71,558.58, 98,751.06 and 39,727.56 is: 54,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,558.58 : 98,751.06 = 39,727.56 : x
  2. Step 2: Convert to fraction form
    71,558.58/98,751.06 = 39,727.56/x
  3. Step 3: Cross multiply
    71,558.58x = 98,751.06 × 39,727.56
  4. Step 4: Simplify right side
    71,558.58x = 3,923,138,661.21
  5. Step 5: Solve for x
    x = 3,923,138,661.21/71,558.58
  6. Step 6: Final answer
    x = 54,824.15

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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.