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Finding the Fourth Proportional to 135,854.96, 203,817.03 and 61,003.41

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Solution

The fourth proportional to 135,854.96, 203,817.03 and 61,003.41 is: 91,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,854.96 : 203,817.03 = 61,003.41 : x
  2. Step 2: Convert to fraction form
    135,854.96/203,817.03 = 61,003.41/x
  3. Step 3: Cross multiply
    135,854.96x = 203,817.03 × 61,003.41
  4. Step 4: Simplify right side
    135,854.96x = 12,433,534,514.18
  5. Step 5: Solve for x
    x = 12,433,534,514.18/135,854.96
  6. Step 6: Final answer
    x = 91,520.66

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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.