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Finding the Fourth Proportional to 111,908.57, 167,813.64 and 59,305.76

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Solution

The fourth proportional to 111,908.57, 167,813.64 and 59,305.76 is: 88,932.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,908.57 : 167,813.64 = 59,305.76 : x
  2. Step 2: Convert to fraction form
    111,908.57/167,813.64 = 59,305.76/x
  3. Step 3: Cross multiply
    111,908.57x = 167,813.64 × 59,305.76
  4. Step 4: Simplify right side
    111,908.57x = 9,952,315,458.57
  5. Step 5: Solve for x
    x = 9,952,315,458.57/111,908.57
  6. Step 6: Final answer
    x = 88,932.56

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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.