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Finding the Fourth Proportional to 251,008.30, 376,528.80 and 82,483.54

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Solution

The fourth proportional to 251,008.30, 376,528.80 and 82,483.54 is: 123,730.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,008.30 : 376,528.80 = 82,483.54 : x
  2. Step 2: Convert to fraction form
    251,008.30/376,528.80 = 82,483.54/x
  3. Step 3: Cross multiply
    251,008.30x = 376,528.80 × 82,483.54
  4. Step 4: Simplify right side
    251,008.30x = 31,057,428,335.95
  5. Step 5: Solve for x
    x = 31,057,428,335.95/251,008.30
  6. Step 6: Final answer
    x = 123,730.68

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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.