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Finding the Fourth Proportional to 535,576.40, 803,361.12 and 136,213.73

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Solution

The fourth proportional to 535,576.40, 803,361.12 and 136,213.73 is: 204,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,576.40 : 803,361.12 = 136,213.73 : x
  2. Step 2: Convert to fraction form
    535,576.40/803,361.12 = 136,213.73/x
  3. Step 3: Cross multiply
    535,576.40x = 803,361.12 × 136,213.73
  4. Step 4: Simplify right side
    535,576.40x = 109,428,814,692.18
  5. Step 5: Solve for x
    x = 109,428,814,692.18/535,576.40
  6. Step 6: Final answer
    x = 204,319.71

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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.