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Finding the Fourth Proportional to 86,116.77, 118,835.51 and 48,383.73

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Solution

The fourth proportional to 86,116.77, 118,835.51 and 48,383.73 is: 66,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,116.77 : 118,835.51 = 48,383.73 : x
  2. Step 2: Convert to fraction form
    86,116.77/118,835.51 = 48,383.73/x
  3. Step 3: Cross multiply
    86,116.77x = 118,835.51 × 48,383.73
  4. Step 4: Simplify right side
    86,116.77x = 5,749,704,988.33
  5. Step 5: Solve for x
    x = 5,749,704,988.33/86,116.77
  6. Step 6: Final answer
    x = 66,766.38

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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.