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Finding the Fourth Proportional to 251,438.06, 377,179.89 and 82,958.87

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Solution

The fourth proportional to 251,438.06, 377,179.89 and 82,958.87 is: 124,445.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,438.06 : 377,179.89 = 82,958.87 : x
  2. Step 2: Convert to fraction form
    251,438.06/377,179.89 = 82,958.87/x
  3. Step 3: Cross multiply
    251,438.06x = 377,179.89 × 82,958.87
  4. Step 4: Simplify right side
    251,438.06x = 31,290,417,461.12
  5. Step 5: Solve for x
    x = 31,290,417,461.12/251,438.06
  6. Step 6: Final answer
    x = 124,445.83

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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.