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Finding the Fourth Proportional to 84,472.88, 126,660.11 and 37,086.05

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Solution

The fourth proportional to 84,472.88, 126,660.11 and 37,086.05 is: 55,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,472.88 : 126,660.11 = 37,086.05 : x
  2. Step 2: Convert to fraction form
    84,472.88/126,660.11 = 37,086.05/x
  3. Step 3: Cross multiply
    84,472.88x = 126,660.11 × 37,086.05
  4. Step 4: Simplify right side
    84,472.88x = 4,697,323,303.69
  5. Step 5: Solve for x
    x = 4,697,323,303.69/84,472.88
  6. Step 6: Final answer
    x = 55,607.48

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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.