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Finding the Fourth Proportional to 386,992.70, 580,265.57 and 150,058.59

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Solution

The fourth proportional to 386,992.70, 580,265.57 and 150,058.59 is: 225,001.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,992.70 : 580,265.57 = 150,058.59 : x
  2. Step 2: Convert to fraction form
    386,992.70/580,265.57 = 150,058.59/x
  3. Step 3: Cross multiply
    386,992.70x = 580,265.57 × 150,058.59
  4. Step 4: Simplify right side
    386,992.70x = 87,073,833,259.75
  5. Step 5: Solve for x
    x = 87,073,833,259.75/386,992.70
  6. Step 6: Final answer
    x = 225,001.23

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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.