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Finding the Fourth Proportional to 111,209.41, 166,645.76 and 73,634.92

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Solution

The fourth proportional to 111,209.41, 166,645.76 and 73,634.92 is: 110,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,209.41 : 166,645.76 = 73,634.92 : x
  2. Step 2: Convert to fraction form
    111,209.41/166,645.76 = 73,634.92/x
  3. Step 3: Cross multiply
    111,209.41x = 166,645.76 × 73,634.92
  4. Step 4: Simplify right side
    111,209.41x = 12,270,947,358.53
  5. Step 5: Solve for x
    x = 12,270,947,358.53/111,209.41
  6. Step 6: Final answer
    x = 110,340.91

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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.