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Finding the Fourth Proportional to 135,752.72, 203,629.33 and 55,734.97

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Solution

The fourth proportional to 135,752.72, 203,629.33 and 55,734.97 is: 83,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,752.72 : 203,629.33 = 55,734.97 : x
  2. Step 2: Convert to fraction form
    135,752.72/203,629.33 = 55,734.97/x
  3. Step 3: Cross multiply
    135,752.72x = 203,629.33 × 55,734.97
  4. Step 4: Simplify right side
    135,752.72x = 11,349,273,301.85
  5. Step 5: Solve for x
    x = 11,349,273,301.85/135,752.72
  6. Step 6: Final answer
    x = 83,602.55

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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.