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Finding the Fourth Proportional to 86,173.44, 118,906.32 and 48,440.40

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Solution

The fourth proportional to 86,173.44, 118,906.32 and 48,440.40 is: 66,840.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,173.44 : 118,906.32 = 48,440.40 : x
  2. Step 2: Convert to fraction form
    86,173.44/118,906.32 = 48,440.40/x
  3. Step 3: Cross multiply
    86,173.44x = 118,906.32 × 48,440.40
  4. Step 4: Simplify right side
    86,173.44x = 5,759,869,703.33
  5. Step 5: Solve for x
    x = 5,759,869,703.33/86,173.44
  6. Step 6: Final answer
    x = 66,840.43

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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.