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Finding the Fourth Proportional to 231,057.63, 346,583.70 and 73,287.45

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Solution

The fourth proportional to 231,057.63, 346,583.70 and 73,287.45 is: 109,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,057.63 : 346,583.70 = 73,287.45 : x
  2. Step 2: Convert to fraction form
    231,057.63/346,583.70 = 73,287.45/x
  3. Step 3: Cross multiply
    231,057.63x = 346,583.70 × 73,287.45
  4. Step 4: Simplify right side
    231,057.63x = 25,400,235,584.57
  5. Step 5: Solve for x
    x = 25,400,235,584.57/231,057.63
  6. Step 6: Final answer
    x = 109,930.30

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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.