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Finding the Fourth Proportional to 79,654.74, 119,445.33 and 29,721.54

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Solution

The fourth proportional to 79,654.74, 119,445.33 and 29,721.54 is: 44,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,654.74 : 119,445.33 = 29,721.54 : x
  2. Step 2: Convert to fraction form
    79,654.74/119,445.33 = 29,721.54/x
  3. Step 3: Cross multiply
    79,654.74x = 119,445.33 × 29,721.54
  4. Step 4: Simplify right side
    79,654.74x = 3,550,099,153.41
  5. Step 5: Solve for x
    x = 3,550,099,153.41/79,654.74
  6. Step 6: Final answer
    x = 44,568.59

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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.