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Finding the Fourth Proportional to 111,622.81, 167,457.28 and 36,747.46

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Solution

The fourth proportional to 111,622.81, 167,457.28 and 36,747.46 is: 55,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,622.81 : 167,457.28 = 36,747.46 : x
  2. Step 2: Convert to fraction form
    111,622.81/167,457.28 = 36,747.46/x
  3. Step 3: Cross multiply
    111,622.81x = 167,457.28 × 36,747.46
  4. Step 4: Simplify right side
    111,622.81x = 6,153,629,514.77
  5. Step 5: Solve for x
    x = 6,153,629,514.77/111,622.81
  6. Step 6: Final answer
    x = 55,128.78

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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.