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Finding the Fourth Proportional to 221,493.40, 332,240.10 and 132,701.20

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Solution

The fourth proportional to 221,493.40, 332,240.10 and 132,701.20 is: 199,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,493.40 : 332,240.10 = 132,701.20 : x
  2. Step 2: Convert to fraction form
    221,493.40/332,240.10 = 132,701.20/x
  3. Step 3: Cross multiply
    221,493.40x = 332,240.10 × 132,701.20
  4. Step 4: Simplify right side
    221,493.40x = 44,088,659,958.12
  5. Step 5: Solve for x
    x = 44,088,659,958.12/221,493.40
  6. Step 6: Final answer
    x = 199,051.80

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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.