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Finding the Fourth Proportional to 231,187.80, 346,791.30 and 73,411.80

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Solution

The fourth proportional to 231,187.80, 346,791.30 and 73,411.80 is: 110,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,187.80 : 346,791.30 = 73,411.80 : x
  2. Step 2: Convert to fraction form
    231,187.80/346,791.30 = 73,411.80/x
  3. Step 3: Cross multiply
    231,187.80x = 346,791.30 × 73,411.80
  4. Step 4: Simplify right side
    231,187.80x = 25,458,573,557.34
  5. Step 5: Solve for x
    x = 25,458,573,557.34/231,187.80
  6. Step 6: Final answer
    x = 110,120.75

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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.