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Finding the Fourth Proportional to 291,424.44, 436,877.31 and 113,891.07

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Solution

The fourth proportional to 291,424.44, 436,877.31 and 113,891.07 is: 170,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,424.44 : 436,877.31 = 113,891.07 : x
  2. Step 2: Convert to fraction form
    291,424.44/436,877.31 = 113,891.07/x
  3. Step 3: Cross multiply
    291,424.44x = 436,877.31 × 113,891.07
  4. Step 4: Simplify right side
    291,424.44x = 49,756,424,294.62
  5. Step 5: Solve for x
    x = 49,756,424,294.62/291,424.44
  6. Step 6: Final answer
    x = 170,735.25

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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.