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Finding the Fourth Proportional to 75,710.57, 104,479.27 and 43,882.43

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Solution

The fourth proportional to 75,710.57, 104,479.27 and 43,882.43 is: 60,556.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,710.57 : 104,479.27 = 43,882.43 : x
  2. Step 2: Convert to fraction form
    75,710.57/104,479.27 = 43,882.43/x
  3. Step 3: Cross multiply
    75,710.57x = 104,479.27 × 43,882.43
  4. Step 4: Simplify right side
    75,710.57x = 4,584,803,620.12
  5. Step 5: Solve for x
    x = 4,584,803,620.12/75,710.57
  6. Step 6: Final answer
    x = 60,556.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.