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Finding the Fourth Proportional to 251,356.86, 346,833.78 and 149,344.56

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Solution

The fourth proportional to 251,356.86, 346,833.78 and 149,344.56 is: 206,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,356.86 : 346,833.78 = 149,344.56 : x
  2. Step 2: Convert to fraction form
    251,356.86/346,833.78 = 149,344.56/x
  3. Step 3: Cross multiply
    251,356.86x = 346,833.78 × 149,344.56
  4. Step 4: Simplify right side
    251,356.86x = 51,797,738,267.24
  5. Step 5: Solve for x
    x = 51,797,738,267.24/251,356.86
  6. Step 6: Final answer
    x = 206,072.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.