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Finding the Fourth Proportional to 237,697, 356,299.80 and 79,872.28

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Solution

The fourth proportional to 237,697, 356,299.80 and 79,872.28 is: 119,725.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,697 : 356,299.80 = 79,872.28 : x
  2. Step 2: Convert to fraction form
    237,697/356,299.80 = 79,872.28/x
  3. Step 3: Cross multiply
    237,697x = 356,299.80 × 79,872.28
  4. Step 4: Simplify right side
    237,697x = 28,458,477,389.54
  5. Step 5: Solve for x
    x = 28,458,477,389.54/237,697
  6. Step 6: Final answer
    x = 119,725.86

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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.