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Finding the Fourth Proportional to 372,391.30, 558,817.80 and 195,025.60

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Solution

The fourth proportional to 372,391.30, 558,817.80 and 195,025.60 is: 292,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,391.30 : 558,817.80 = 195,025.60 : x
  2. Step 2: Convert to fraction form
    372,391.30/558,817.80 = 195,025.60/x
  3. Step 3: Cross multiply
    372,391.30x = 558,817.80 × 195,025.60
  4. Step 4: Simplify right side
    372,391.30x = 108,983,776,735.68
  5. Step 5: Solve for x
    x = 108,983,776,735.68/372,391.30
  6. Step 6: Final answer
    x = 292,659.30

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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.