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Finding the Fourth Proportional to 54,603.56, 81,905.28 and 17,166.90

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Solution

The fourth proportional to 54,603.56, 81,905.28 and 17,166.90 is: 25,750.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,603.56 : 81,905.28 = 17,166.90 : x
  2. Step 2: Convert to fraction form
    54,603.56/81,905.28 = 17,166.90/x
  3. Step 3: Cross multiply
    54,603.56x = 81,905.28 × 17,166.90
  4. Step 4: Simplify right side
    54,603.56x = 1,406,059,994.00
  5. Step 5: Solve for x
    x = 1,406,059,994.00/54,603.56
  6. Step 6: Final answer
    x = 25,750.33

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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.