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Finding the Fourth Proportional to 75,124.48, 103,676.78 and 43,295.42

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Solution

The fourth proportional to 75,124.48, 103,676.78 and 43,295.42 is: 59,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,124.48 : 103,676.78 = 43,295.42 : x
  2. Step 2: Convert to fraction form
    75,124.48/103,676.78 = 43,295.42/x
  3. Step 3: Cross multiply
    75,124.48x = 103,676.78 × 43,295.42
  4. Step 4: Simplify right side
    75,124.48x = 4,488,729,734.35
  5. Step 5: Solve for x
    x = 4,488,729,734.35/75,124.48
  6. Step 6: Final answer
    x = 59,750.56

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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.