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Finding the Fourth Proportional to 251,156.80, 376,500.96 and 84,828.48

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Solution

The fourth proportional to 251,156.80, 376,500.96 and 84,828.48 is: 127,163.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,156.80 : 376,500.96 = 84,828.48 : x
  2. Step 2: Convert to fraction form
    251,156.80/376,500.96 = 84,828.48/x
  3. Step 3: Cross multiply
    251,156.80x = 376,500.96 × 84,828.48
  4. Step 4: Simplify right side
    251,156.80x = 31,938,004,155.34
  5. Step 5: Solve for x
    x = 31,938,004,155.34/251,156.80
  6. Step 6: Final answer
    x = 127,163.61

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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.