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Finding the Fourth Proportional to 85,481.26, 117,960.50 and 47,242.24

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Solution

The fourth proportional to 85,481.26, 117,960.50 and 47,242.24 is: 65,192.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,481.26 : 117,960.50 = 47,242.24 : x
  2. Step 2: Convert to fraction form
    85,481.26/117,960.50 = 47,242.24/x
  3. Step 3: Cross multiply
    85,481.26x = 117,960.50 × 47,242.24
  4. Step 4: Simplify right side
    85,481.26x = 5,572,718,074.72
  5. Step 5: Solve for x
    x = 5,572,718,074.72/85,481.26
  6. Step 6: Final answer
    x = 65,192.28

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1.5x scale

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.