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Finding the Fourth Proportional to 108,908.88, 163,357.44 and 34,020.43

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Solution

The fourth proportional to 108,908.88, 163,357.44 and 34,020.43 is: 51,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,908.88 : 163,357.44 = 34,020.43 : x
  2. Step 2: Convert to fraction form
    108,908.88/163,357.44 = 34,020.43/x
  3. Step 3: Cross multiply
    108,908.88x = 163,357.44 × 34,020.43
  4. Step 4: Simplify right side
    108,908.88x = 5,557,490,352.50
  5. Step 5: Solve for x
    x = 5,557,490,352.50/108,908.88
  6. Step 6: Final answer
    x = 51,028.81

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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.