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Finding the Fourth Proportional to 135,957.35, 203,965.20 and 57,026.09

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Solution

The fourth proportional to 135,957.35, 203,965.20 and 57,026.09 is: 85,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,957.35 : 203,965.20 = 57,026.09 : x
  2. Step 2: Convert to fraction form
    135,957.35/203,965.20 = 57,026.09/x
  3. Step 3: Cross multiply
    135,957.35x = 203,965.20 × 57,026.09
  4. Step 4: Simplify right side
    135,957.35x = 11,631,337,852.07
  5. Step 5: Solve for x
    x = 11,631,337,852.07/135,957.35
  6. Step 6: Final answer
    x = 85,551.37

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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.