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Finding the Fourth Proportional to 231,312.60, 346,978.62 and 73,537.56

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Solution

The fourth proportional to 231,312.60, 346,978.62 and 73,537.56 is: 110,309.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,312.60 : 346,978.62 = 73,537.56 : x
  2. Step 2: Convert to fraction form
    231,312.60/346,978.62 = 73,537.56/x
  3. Step 3: Cross multiply
    231,312.60x = 346,978.62 × 73,537.56
  4. Step 4: Simplify right side
    231,312.60x = 25,515,961,086.97
  5. Step 5: Solve for x
    x = 25,515,961,086.97/231,312.60
  6. Step 6: Final answer
    x = 110,309.43

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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.