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Finding the Fourth Proportional to 87,419.66, 131,101.71 and 37,486.33

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Solution

The fourth proportional to 87,419.66, 131,101.71 and 37,486.33 is: 56,217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,419.66 : 131,101.71 = 37,486.33 : x
  2. Step 2: Convert to fraction form
    87,419.66/131,101.71 = 37,486.33/x
  3. Step 3: Cross multiply
    87,419.66x = 131,101.71 × 37,486.33
  4. Step 4: Simplify right side
    87,419.66x = 4,914,521,496.30
  5. Step 5: Solve for x
    x = 4,914,521,496.30/87,419.66
  6. Step 6: Final answer
    x = 56,217.58

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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.