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Finding the Fourth Proportional to 269,913.12, 404,782.56 and 89,950.56

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Solution

The fourth proportional to 269,913.12, 404,782.56 and 89,950.56 is: 134,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,913.12 : 404,782.56 = 89,950.56 : x
  2. Step 2: Convert to fraction form
    269,913.12/404,782.56 = 89,950.56/x
  3. Step 3: Cross multiply
    269,913.12x = 404,782.56 × 89,950.56
  4. Step 4: Simplify right side
    269,913.12x = 36,410,417,950.23
  5. Step 5: Solve for x
    x = 36,410,417,950.23/269,913.12
  6. Step 6: Final answer
    x = 134,896.81

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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.