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Finding the Fourth Proportional to 120,160.80, 179,863.28 and 82,500.48

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Solution

The fourth proportional to 120,160.80, 179,863.28 and 82,500.48 is: 123,491.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,160.80 : 179,863.28 = 82,500.48 : x
  2. Step 2: Convert to fraction form
    120,160.80/179,863.28 = 82,500.48/x
  3. Step 3: Cross multiply
    120,160.80x = 179,863.28 × 82,500.48
  4. Step 4: Simplify right side
    120,160.80x = 14,838,806,934.37
  5. Step 5: Solve for x
    x = 14,838,806,934.37/120,160.80
  6. Step 6: Final answer
    x = 123,491.25

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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.