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Finding the Fourth Proportional to 251,009.30, 376,530.30 and 82,484.54

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Solution

The fourth proportional to 251,009.30, 376,530.30 and 82,484.54 is: 123,732.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,009.30 : 376,530.30 = 82,484.54 : x
  2. Step 2: Convert to fraction form
    251,009.30/376,530.30 = 82,484.54/x
  3. Step 3: Cross multiply
    251,009.30x = 376,530.30 × 82,484.54
  4. Step 4: Simplify right side
    251,009.30x = 31,057,928,591.56
  5. Step 5: Solve for x
    x = 31,057,928,591.56/251,009.30
  6. Step 6: Final answer
    x = 123,732.18

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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.