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Finding the Fourth Proportional to 84,336.58, 126,504.90 and 25,213.81

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Solution

The fourth proportional to 84,336.58, 126,504.90 and 25,213.81 is: 37,820.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,336.58 : 126,504.90 = 25,213.81 : x
  2. Step 2: Convert to fraction form
    84,336.58/126,504.90 = 25,213.81/x
  3. Step 3: Cross multiply
    84,336.58x = 126,504.90 × 25,213.81
  4. Step 4: Simplify right side
    84,336.58x = 3,189,670,512.67
  5. Step 5: Solve for x
    x = 3,189,670,512.67/84,336.58
  6. Step 6: Final answer
    x = 37,820.72

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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.