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Finding the Fourth Proportional to 132,003.20, 197,713.20 and 53,076.80

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Solution

The fourth proportional to 132,003.20, 197,713.20 and 53,076.80 is: 79,497.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,003.20 : 197,713.20 = 53,076.80 : x
  2. Step 2: Convert to fraction form
    132,003.20/197,713.20 = 53,076.80/x
  3. Step 3: Cross multiply
    132,003.20x = 197,713.20 × 53,076.80
  4. Step 4: Simplify right side
    132,003.20x = 10,493,983,973.76
  5. Step 5: Solve for x
    x = 10,493,983,973.76/132,003.20
  6. Step 6: Final answer
    x = 79,497.95

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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.