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Finding the Fourth Proportional to 111,993.12, 168,005.50 and 41,865.76

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Solution

The fourth proportional to 111,993.12, 168,005.50 and 41,865.76 is: 62,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,993.12 : 168,005.50 = 41,865.76 : x
  2. Step 2: Convert to fraction form
    111,993.12/168,005.50 = 41,865.76/x
  3. Step 3: Cross multiply
    111,993.12x = 168,005.50 × 41,865.76
  4. Step 4: Simplify right side
    111,993.12x = 7,033,677,941.68
  5. Step 5: Solve for x
    x = 7,033,677,941.68/111,993.12
  6. Step 6: Final answer
    x = 62,804.55

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