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Finding the Fourth Proportional to 231,383.70, 347,007.47 and 104,950.80

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Solution

The fourth proportional to 231,383.70, 347,007.47 and 104,950.80 is: 157,395.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,383.70 : 347,007.47 = 104,950.80 : x
  2. Step 2: Convert to fraction form
    231,383.70/347,007.47 = 104,950.80/x
  3. Step 3: Cross multiply
    231,383.70x = 347,007.47 × 104,950.80
  4. Step 4: Simplify right side
    231,383.70x = 36,418,711,057.72
  5. Step 5: Solve for x
    x = 36,418,711,057.72/231,383.70
  6. Step 6: Final answer
    x = 157,395.32

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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.