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Finding the Fourth Proportional to 71,989.16, 108,016.56 and 36,953.44

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Solution

The fourth proportional to 71,989.16, 108,016.56 and 36,953.44 is: 55,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,989.16 : 108,016.56 = 36,953.44 : x
  2. Step 2: Convert to fraction form
    71,989.16/108,016.56 = 36,953.44/x
  3. Step 3: Cross multiply
    71,989.16x = 108,016.56 × 36,953.44
  4. Step 4: Simplify right side
    71,989.16x = 3,991,583,468.97
  5. Step 5: Solve for x
    x = 3,991,583,468.97/71,989.16
  6. Step 6: Final answer
    x = 55,447.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.