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Finding the Fourth Proportional to 79,324.65, 118,956.11 and 39,854.25

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Solution

The fourth proportional to 79,324.65, 118,956.11 and 39,854.25 is: 59,765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,324.65 : 118,956.11 = 39,854.25 : x
  2. Step 2: Convert to fraction form
    79,324.65/118,956.11 = 39,854.25/x
  3. Step 3: Cross multiply
    79,324.65x = 118,956.11 × 39,854.25
  4. Step 4: Simplify right side
    79,324.65x = 4,740,906,347.70
  5. Step 5: Solve for x
    x = 4,740,906,347.70/79,324.65
  6. Step 6: Final answer
    x = 59,765.87

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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.