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Finding the Fourth Proportional to 185,367.28, 277,843.56 and 80,028.40

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Solution

The fourth proportional to 185,367.28, 277,843.56 and 80,028.40 is: 119,953.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,367.28 : 277,843.56 = 80,028.40 : x
  2. Step 2: Convert to fraction form
    185,367.28/277,843.56 = 80,028.40/x
  3. Step 3: Cross multiply
    185,367.28x = 277,843.56 × 80,028.40
  4. Step 4: Simplify right side
    185,367.28x = 22,235,375,557.10
  5. Step 5: Solve for x
    x = 22,235,375,557.10/185,367.28
  6. Step 6: Final answer
    x = 119,953.08

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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.