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Finding the Fourth Proportional to 135,203.45, 202,789.67 and 35,373.29

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Solution

The fourth proportional to 135,203.45, 202,789.67 and 35,373.29 is: 53,055.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,203.45 : 202,789.67 = 35,373.29 : x
  2. Step 2: Convert to fraction form
    135,203.45/202,789.67 = 35,373.29/x
  3. Step 3: Cross multiply
    135,203.45x = 202,789.67 × 35,373.29
  4. Step 4: Simplify right side
    135,203.45x = 7,173,336,615.10
  5. Step 5: Solve for x
    x = 7,173,336,615.10/135,203.45
  6. Step 6: Final answer
    x = 53,055.87

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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.