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Finding the Fourth Proportional to 85,940.82, 118,608.57 and 48,220.74

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Solution

The fourth proportional to 85,940.82, 118,608.57 and 48,220.74 is: 66,550.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,940.82 : 118,608.57 = 48,220.74 : x
  2. Step 2: Convert to fraction form
    85,940.82/118,608.57 = 48,220.74/x
  3. Step 3: Cross multiply
    85,940.82x = 118,608.57 × 48,220.74
  4. Step 4: Simplify right side
    85,940.82x = 5,719,393,015.74
  5. Step 5: Solve for x
    x = 5,719,393,015.74/85,940.82
  6. Step 6: Final answer
    x = 66,550.37

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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.