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Finding the Fourth Proportional to 86,057.58, 118,746.54 and 48,324.54

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Solution

The fourth proportional to 86,057.58, 118,746.54 and 48,324.54 is: 66,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,057.58 : 118,746.54 = 48,324.54 : x
  2. Step 2: Convert to fraction form
    86,057.58/118,746.54 = 48,324.54/x
  3. Step 3: Cross multiply
    86,057.58x = 118,746.54 × 48,324.54
  4. Step 4: Simplify right side
    86,057.58x = 5,738,371,922.09
  5. Step 5: Solve for x
    x = 5,738,371,922.09/86,057.58
  6. Step 6: Final answer
    x = 66,680.61

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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.