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Finding the Fourth Proportional to 371,760, 557,326.44 and 161,239.36

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Solution

The fourth proportional to 371,760, 557,326.44 and 161,239.36 is: 241,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,760 : 557,326.44 = 161,239.36 : x
  2. Step 2: Convert to fraction form
    371,760/557,326.44 = 161,239.36/x
  3. Step 3: Cross multiply
    371,760x = 557,326.44 × 161,239.36
  4. Step 4: Simplify right side
    371,760x = 89,862,958,496.68
  5. Step 5: Solve for x
    x = 89,862,958,496.68/371,760
  6. Step 6: Final answer
    x = 241,723.04

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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.