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Finding the Fourth Proportional to 71,091.52, 106,563.04 and 28,953.44

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Solution

The fourth proportional to 71,091.52, 106,563.04 and 28,953.44 is: 43,399.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,091.52 : 106,563.04 = 28,953.44 : x
  2. Step 2: Convert to fraction form
    71,091.52/106,563.04 = 28,953.44/x
  3. Step 3: Cross multiply
    71,091.52x = 106,563.04 × 28,953.44
  4. Step 4: Simplify right side
    71,091.52x = 3,085,366,584.86
  5. Step 5: Solve for x
    x = 3,085,366,584.86/71,091.52
  6. Step 6: Final answer
    x = 43,399.92

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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.