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Finding the Fourth Proportional to 84,564.60, 126,836.82 and 22,239.96

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Solution

The fourth proportional to 84,564.60, 126,836.82 and 22,239.96 is: 33,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,564.60 : 126,836.82 = 22,239.96 : x
  2. Step 2: Convert to fraction form
    84,564.60/126,836.82 = 22,239.96/x
  3. Step 3: Cross multiply
    84,564.60x = 126,836.82 × 22,239.96
  4. Step 4: Simplify right side
    84,564.60x = 2,820,845,803.33
  5. Step 5: Solve for x
    x = 2,820,845,803.33/84,564.60
  6. Step 6: Final answer
    x = 33,357.29

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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.