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Finding the Fourth Proportional to 86,057.64, 118,746.66 and 48,324.60

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Solution

The fourth proportional to 86,057.64, 118,746.66 and 48,324.60 is: 66,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,057.64 : 118,746.66 = 48,324.60 : x
  2. Step 2: Convert to fraction form
    86,057.64/118,746.66 = 48,324.60/x
  3. Step 3: Cross multiply
    86,057.64x = 118,746.66 × 48,324.60
  4. Step 4: Simplify right side
    86,057.64x = 5,738,384,845.84
  5. Step 5: Solve for x
    x = 5,738,384,845.84/86,057.64
  6. Step 6: Final answer
    x = 66,680.71

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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.