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Finding the Fourth Proportional to 457,015.27, 685,515.57 and 124,591.27

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Solution

The fourth proportional to 457,015.27, 685,515.57 and 124,591.27 is: 186,884.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,015.27 : 685,515.57 = 124,591.27 : x
  2. Step 2: Convert to fraction form
    457,015.27/685,515.57 = 124,591.27/x
  3. Step 3: Cross multiply
    457,015.27x = 685,515.57 × 124,591.27
  4. Step 4: Simplify right side
    457,015.27x = 85,409,255,471.07
  5. Step 5: Solve for x
    x = 85,409,255,471.07/457,015.27
  6. Step 6: Final answer
    x = 186,884.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.