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Finding the Fourth Proportional to 372,969.80, 558,984.26 and 159,485.34

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Solution

The fourth proportional to 372,969.80, 558,984.26 and 159,485.34 is: 239,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,969.80 : 558,984.26 = 159,485.34 : x
  2. Step 2: Convert to fraction form
    372,969.80/558,984.26 = 159,485.34/x
  3. Step 3: Cross multiply
    372,969.80x = 558,984.26 × 159,485.34
  4. Step 4: Simplify right side
    372,969.80x = 89,149,794,760.75
  5. Step 5: Solve for x
    x = 89,149,794,760.75/372,969.80
  6. Step 6: Final answer
    x = 239,026.85

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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.