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Finding the Fourth Proportional to 83,004.75, 114,546.96 and 45,279

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Solution

The fourth proportional to 83,004.75, 114,546.96 and 45,279 is: 62,485.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,004.75 : 114,546.96 = 45,279 : x
  2. Step 2: Convert to fraction form
    83,004.75/114,546.96 = 45,279/x
  3. Step 3: Cross multiply
    83,004.75x = 114,546.96 × 45,279
  4. Step 4: Simplify right side
    83,004.75x = 5,186,571,801.84
  5. Step 5: Solve for x
    x = 5,186,571,801.84/83,004.75
  6. Step 6: Final answer
    x = 62,485.24

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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.