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Finding the Fourth Proportional to 231,840.80, 347,811.60 and 132,048.80

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Solution

The fourth proportional to 231,840.80, 347,811.60 and 132,048.80 is: 198,101.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,840.80 : 347,811.60 = 132,048.80 : x
  2. Step 2: Convert to fraction form
    231,840.80/347,811.60 = 132,048.80/x
  3. Step 3: Cross multiply
    231,840.80x = 347,811.60 × 132,048.80
  4. Step 4: Simplify right side
    231,840.80x = 45,928,104,406.08
  5. Step 5: Solve for x
    x = 45,928,104,406.08/231,840.80
  6. Step 6: Final answer
    x = 198,101.91

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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.