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Finding the Fourth Proportional to 71,360.72, 98,469.24 and 41,156

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Solution

The fourth proportional to 71,360.72, 98,469.24 and 41,156 is: 56,790.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,360.72 : 98,469.24 = 41,156 : x
  2. Step 2: Convert to fraction form
    71,360.72/98,469.24 = 41,156/x
  3. Step 3: Cross multiply
    71,360.72x = 98,469.24 × 41,156
  4. Step 4: Simplify right side
    71,360.72x = 4,052,600,041.44
  5. Step 5: Solve for x
    x = 4,052,600,041.44/71,360.72
  6. Step 6: Final answer
    x = 56,790.35

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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.