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Finding the Fourth Proportional to 110,479.68, 165,747.36 and 31,600.56

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Solution

The fourth proportional to 110,479.68, 165,747.36 and 31,600.56 is: 47,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,479.68 : 165,747.36 = 31,600.56 : x
  2. Step 2: Convert to fraction form
    110,479.68/165,747.36 = 31,600.56/x
  3. Step 3: Cross multiply
    110,479.68x = 165,747.36 × 31,600.56
  4. Step 4: Simplify right side
    110,479.68x = 5,237,709,394.52
  5. Step 5: Solve for x
    x = 5,237,709,394.52/110,479.68
  6. Step 6: Final answer
    x = 47,408.80

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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.