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Finding the Fourth Proportional to 135,926.70, 203,919.23 and 52,820.70

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Solution

The fourth proportional to 135,926.70, 203,919.23 and 52,820.70 is: 79,242.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,926.70 : 203,919.23 = 52,820.70 : x
  2. Step 2: Convert to fraction form
    135,926.70/203,919.23 = 52,820.70/x
  3. Step 3: Cross multiply
    135,926.70x = 203,919.23 × 52,820.70
  4. Step 4: Simplify right side
    135,926.70x = 10,771,156,472.06
  5. Step 5: Solve for x
    x = 10,771,156,472.06/135,926.70
  6. Step 6: Final answer
    x = 79,242.39

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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.