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Finding the Fourth Proportional to 251,151.52, 376,917.36 and 126,597.28

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Solution

The fourth proportional to 251,151.52, 376,917.36 and 126,597.28 is: 189,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,151.52 : 376,917.36 = 126,597.28 : x
  2. Step 2: Convert to fraction form
    251,151.52/376,917.36 = 126,597.28/x
  3. Step 3: Cross multiply
    251,151.52x = 376,917.36 × 126,597.28
  4. Step 4: Simplify right side
    251,151.52x = 47,716,712,560.78
  5. Step 5: Solve for x
    x = 47,716,712,560.78/251,151.52
  6. Step 6: Final answer
    x = 189,991.73

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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.