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Finding the Fourth Proportional to 108,519.78, 162,040.96 and 95,763.08

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Solution

The fourth proportional to 108,519.78, 162,040.96 and 95,763.08 is: 142,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,519.78 : 162,040.96 = 95,763.08 : x
  2. Step 2: Convert to fraction form
    108,519.78/162,040.96 = 95,763.08/x
  3. Step 3: Cross multiply
    108,519.78x = 162,040.96 × 95,763.08
  4. Step 4: Simplify right side
    108,519.78x = 15,517,541,415.76
  5. Step 5: Solve for x
    x = 15,517,541,415.76/108,519.78
  6. Step 6: Final answer
    x = 142,992.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.