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Finding the Fourth Proportional to 132,277.92, 198,415.79 and 53,390.94

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Solution

The fourth proportional to 132,277.92, 198,415.79 and 53,390.94 is: 80,085.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,277.92 : 198,415.79 = 53,390.94 : x
  2. Step 2: Convert to fraction form
    132,277.92/198,415.79 = 53,390.94/x
  3. Step 3: Cross multiply
    132,277.92x = 198,415.79 × 53,390.94
  4. Step 4: Simplify right side
    132,277.92x = 10,593,605,538.94
  5. Step 5: Solve for x
    x = 10,593,605,538.94/132,277.92
  6. Step 6: Final answer
    x = 80,085.97

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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.