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Finding the Fourth Proportional to 73,696.64, 110,544.96 and 18,292.64

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Solution

The fourth proportional to 73,696.64, 110,544.96 and 18,292.64 is: 27,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,696.64 : 110,544.96 = 18,292.64 : x
  2. Step 2: Convert to fraction form
    73,696.64/110,544.96 = 18,292.64/x
  3. Step 3: Cross multiply
    73,696.64x = 110,544.96 × 18,292.64
  4. Step 4: Simplify right side
    73,696.64x = 2,022,159,157.09
  5. Step 5: Solve for x
    x = 2,022,159,157.09/73,696.64
  6. Step 6: Final answer
    x = 27,438.96

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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.