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Finding the Fourth Proportional to 135,886.01, 203,703.26 and 51,620.90

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Solution

The fourth proportional to 135,886.01, 203,703.26 and 51,620.90 is: 77,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,886.01 : 203,703.26 = 51,620.90 : x
  2. Step 2: Convert to fraction form
    135,886.01/203,703.26 = 51,620.90/x
  3. Step 3: Cross multiply
    135,886.01x = 203,703.26 × 51,620.90
  4. Step 4: Simplify right side
    135,886.01x = 10,515,344,337.51
  5. Step 5: Solve for x
    x = 10,515,344,337.51/135,886.01
  6. Step 6: Final answer
    x = 77,383.57

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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.