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Finding the Fourth Proportional to 78,958.77, 108,982.46 and 44,987.30

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Solution

The fourth proportional to 78,958.77, 108,982.46 and 44,987.30 is: 62,093.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,958.77 : 108,982.46 = 44,987.30 : x
  2. Step 2: Convert to fraction form
    78,958.77/108,982.46 = 44,987.30/x
  3. Step 3: Cross multiply
    78,958.77x = 108,982.46 × 44,987.30
  4. Step 4: Simplify right side
    78,958.77x = 4,902,826,599.00
  5. Step 5: Solve for x
    x = 4,902,826,599.00/78,958.77
  6. Step 6: Final answer
    x = 62,093.51

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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.