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Finding the Fourth Proportional to 556,912.26, 835,361.10 and 136,191.78

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Solution

The fourth proportional to 556,912.26, 835,361.10 and 136,191.78 is: 204,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,912.26 : 835,361.10 = 136,191.78 : x
  2. Step 2: Convert to fraction form
    556,912.26/835,361.10 = 136,191.78/x
  3. Step 3: Cross multiply
    556,912.26x = 835,361.10 × 136,191.78
  4. Step 4: Simplify right side
    556,912.26x = 113,769,315,151.76
  5. Step 5: Solve for x
    x = 113,769,315,151.76/556,912.26
  6. Step 6: Final answer
    x = 204,285.89

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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.