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Finding the Fourth Proportional to 82,927.88, 114,440.72 and 47,129.80

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Solution

The fourth proportional to 82,927.88, 114,440.72 and 47,129.80 is: 65,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,927.88 : 114,440.72 = 47,129.80 : x
  2. Step 2: Convert to fraction form
    82,927.88/114,440.72 = 47,129.80/x
  3. Step 3: Cross multiply
    82,927.88x = 114,440.72 × 47,129.80
  4. Step 4: Simplify right side
    82,927.88x = 5,393,568,245.46
  5. Step 5: Solve for x
    x = 5,393,568,245.46/82,927.88
  6. Step 6: Final answer
    x = 65,039.26

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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.