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Finding the Fourth Proportional to 237,987.66, 356,982.72 and 80,217.48

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Solution

The fourth proportional to 237,987.66, 356,982.72 and 80,217.48 is: 120,326.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,987.66 : 356,982.72 = 80,217.48 : x
  2. Step 2: Convert to fraction form
    237,987.66/356,982.72 = 80,217.48/x
  3. Step 3: Cross multiply
    237,987.66x = 356,982.72 × 80,217.48
  4. Step 4: Simplify right side
    237,987.66x = 28,636,254,201.95
  5. Step 5: Solve for x
    x = 28,636,254,201.95/237,987.66
  6. Step 6: Final answer
    x = 120,326.63

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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.