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Finding the Fourth Proportional to 251,041.20, 376,561.80 and 84,826.80

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Solution

The fourth proportional to 251,041.20, 376,561.80 and 84,826.80 is: 127,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,041.20 : 376,561.80 = 84,826.80 : x
  2. Step 2: Convert to fraction form
    251,041.20/376,561.80 = 84,826.80/x
  3. Step 3: Cross multiply
    251,041.20x = 376,561.80 × 84,826.80
  4. Step 4: Simplify right side
    251,041.20x = 31,942,532,496.24
  5. Step 5: Solve for x
    x = 31,942,532,496.24/251,041.20
  6. Step 6: Final answer
    x = 127,240.20

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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.