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Finding the Fourth Proportional to 111,059.51, 166,589.26 and 88,768.51

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Solution

The fourth proportional to 111,059.51, 166,589.26 and 88,768.51 is: 133,152.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,059.51 : 166,589.26 = 88,768.51 : x
  2. Step 2: Convert to fraction form
    111,059.51/166,589.26 = 88,768.51/x
  3. Step 3: Cross multiply
    111,059.51x = 166,589.26 × 88,768.51
  4. Step 4: Simplify right side
    111,059.51x = 14,787,879,753.81
  5. Step 5: Solve for x
    x = 14,787,879,753.81/111,059.51
  6. Step 6: Final answer
    x = 133,152.76

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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.