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Finding the Fourth Proportional to 84,253.82, 126,419.81 and 36,862.67

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Solution

The fourth proportional to 84,253.82, 126,419.81 and 36,862.67 is: 55,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,253.82 : 126,419.81 = 36,862.67 : x
  2. Step 2: Convert to fraction form
    84,253.82/126,419.81 = 36,862.67/x
  3. Step 3: Cross multiply
    84,253.82x = 126,419.81 × 36,862.67
  4. Step 4: Simplify right side
    84,253.82x = 4,660,172,076.58
  5. Step 5: Solve for x
    x = 4,660,172,076.58/84,253.82
  6. Step 6: Final answer
    x = 55,311.11

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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.