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Finding the Fourth Proportional to 234,846.72, 352,281.24 and 74,939.60

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Solution

The fourth proportional to 234,846.72, 352,281.24 and 74,939.60 is: 112,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,846.72 : 352,281.24 = 74,939.60 : x
  2. Step 2: Convert to fraction form
    234,846.72/352,281.24 = 74,939.60/x
  3. Step 3: Cross multiply
    234,846.72x = 352,281.24 × 74,939.60
  4. Step 4: Simplify right side
    234,846.72x = 26,399,815,213.10
  5. Step 5: Solve for x
    x = 26,399,815,213.10/234,846.72
  6. Step 6: Final answer
    x = 112,412.96

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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.