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Finding the Fourth Proportional to 172,347.81, 237,839.97 and 96,896.31

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Solution

The fourth proportional to 172,347.81, 237,839.97 and 96,896.31 is: 133,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,347.81 : 237,839.97 = 96,896.31 : x
  2. Step 2: Convert to fraction form
    172,347.81/237,839.97 = 96,896.31/x
  3. Step 3: Cross multiply
    172,347.81x = 237,839.97 × 96,896.31
  4. Step 4: Simplify right side
    172,347.81x = 23,045,815,463.51
  5. Step 5: Solve for x
    x = 23,045,815,463.51/172,347.81
  6. Step 6: Final answer
    x = 133,716.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.