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Finding the Fourth Proportional to 85,571.48, 118,086.57 and 47,330.03

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Solution

The fourth proportional to 85,571.48, 118,086.57 and 47,330.03 is: 65,314.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,571.48 : 118,086.57 = 47,330.03 : x
  2. Step 2: Convert to fraction form
    85,571.48/118,086.57 = 47,330.03/x
  3. Step 3: Cross multiply
    85,571.48x = 118,086.57 × 47,330.03
  4. Step 4: Simplify right side
    85,571.48x = 5,589,040,310.26
  5. Step 5: Solve for x
    x = 5,589,040,310.26/85,571.48
  6. Step 6: Final answer
    x = 65,314.29

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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.