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Finding the Fourth Proportional to 54,603.74, 81,905.55 and 17,167.09

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Solution

The fourth proportional to 54,603.74, 81,905.55 and 17,167.09 is: 25,750.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,603.74 : 81,905.55 = 17,167.09 : x
  2. Step 2: Convert to fraction form
    54,603.74/81,905.55 = 17,167.09/x
  3. Step 3: Cross multiply
    54,603.74x = 81,905.55 × 17,167.09
  4. Step 4: Simplify right side
    54,603.74x = 1,406,079,538.82
  5. Step 5: Solve for x
    x = 1,406,079,538.82/54,603.74
  6. Step 6: Final answer
    x = 25,750.61

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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.