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Finding the Fourth Proportional to 418,589.82, 627,870.60 and 181,932.51

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Solution

The fourth proportional to 418,589.82, 627,870.60 and 181,932.51 is: 272,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,589.82 : 627,870.60 = 181,932.51 : x
  2. Step 2: Convert to fraction form
    418,589.82/627,870.60 = 181,932.51/x
  3. Step 3: Cross multiply
    418,589.82x = 627,870.60 × 181,932.51
  4. Step 4: Simplify right side
    418,589.82x = 114,230,074,213.21
  5. Step 5: Solve for x
    x = 114,230,074,213.21/418,589.82
  6. Step 6: Final answer
    x = 272,892.62

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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.