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Finding the Fourth Proportional to 111,773.09, 167,667.80 and 36,890.21

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Solution

The fourth proportional to 111,773.09, 167,667.80 and 36,890.21 is: 55,338.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,773.09 : 167,667.80 = 36,890.21 : x
  2. Step 2: Convert to fraction form
    111,773.09/167,667.80 = 36,890.21/x
  3. Step 3: Cross multiply
    111,773.09x = 167,667.80 × 36,890.21
  4. Step 4: Simplify right side
    111,773.09x = 6,185,299,329.45
  5. Step 5: Solve for x
    x = 6,185,299,329.45/111,773.09
  6. Step 6: Final answer
    x = 55,338.00

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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.