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Finding the Fourth Proportional to 111,254.97, 166,919.72 and 36,378.57

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Solution

The fourth proportional to 111,254.97, 166,919.72 and 36,378.57 is: 54,580.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,254.97 : 166,919.72 = 36,378.57 : x
  2. Step 2: Convert to fraction form
    111,254.97/166,919.72 = 36,378.57/x
  3. Step 3: Cross multiply
    111,254.97x = 166,919.72 × 36,378.57
  4. Step 4: Simplify right side
    111,254.97x = 6,072,300,536.51
  5. Step 5: Solve for x
    x = 6,072,300,536.51/111,254.97
  6. Step 6: Final answer
    x = 54,580.04

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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.