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Finding the Fourth Proportional to 84,568.88, 126,865.17 and 34,656.08

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Solution

The fourth proportional to 84,568.88, 126,865.17 and 34,656.08 is: 51,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,568.88 : 126,865.17 = 34,656.08 : x
  2. Step 2: Convert to fraction form
    84,568.88/126,865.17 = 34,656.08/x
  3. Step 3: Cross multiply
    84,568.88x = 126,865.17 × 34,656.08
  4. Step 4: Simplify right side
    84,568.88x = 4,396,648,846.41
  5. Step 5: Solve for x
    x = 4,396,648,846.41/84,568.88
  6. Step 6: Final answer
    x = 51,988.97

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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.