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Finding the Fourth Proportional to 71,959.92, 107,874.54 and 25,187.28

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Solution

The fourth proportional to 71,959.92, 107,874.54 and 25,187.28 is: 37,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,959.92 : 107,874.54 = 25,187.28 : x
  2. Step 2: Convert to fraction form
    71,959.92/107,874.54 = 25,187.28/x
  3. Step 3: Cross multiply
    71,959.92x = 107,874.54 × 25,187.28
  4. Step 4: Simplify right side
    71,959.92x = 2,717,066,243.85
  5. Step 5: Solve for x
    x = 2,717,066,243.85/71,959.92
  6. Step 6: Final answer
    x = 37,758.05

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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.