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Finding the Fourth Proportional to 418,568.82, 627,839.12 and 181,911.52

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Solution

The fourth proportional to 418,568.82, 627,839.12 and 181,911.52 is: 272,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,568.82 : 627,839.12 = 181,911.52 : x
  2. Step 2: Convert to fraction form
    418,568.82/627,839.12 = 181,911.52/x
  3. Step 3: Cross multiply
    418,568.82x = 627,839.12 × 181,911.52
  4. Step 4: Simplify right side
    418,568.82x = 114,211,168,634.66
  5. Step 5: Solve for x
    x = 114,211,168,634.66/418,568.82
  6. Step 6: Final answer
    x = 272,861.15

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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.