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Finding the Fourth Proportional to 86,059.64, 118,749.42 and 48,326.60

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Solution

The fourth proportional to 86,059.64, 118,749.42 and 48,326.60 is: 66,683.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,059.64 : 118,749.42 = 48,326.60 : x
  2. Step 2: Convert to fraction form
    86,059.64/118,749.42 = 48,326.60/x
  3. Step 3: Cross multiply
    86,059.64x = 118,749.42 × 48,326.60
  4. Step 4: Simplify right side
    86,059.64x = 5,738,755,720.57
  5. Step 5: Solve for x
    x = 5,738,755,720.57/86,059.64
  6. Step 6: Final answer
    x = 66,683.47

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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.