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Finding the Fourth Proportional to 185,970.52, 278,785.68 and 80,751.52

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Solution

The fourth proportional to 185,970.52, 278,785.68 and 80,751.52 is: 121,053.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,970.52 : 278,785.68 = 80,751.52 : x
  2. Step 2: Convert to fraction form
    185,970.52/278,785.68 = 80,751.52/x
  3. Step 3: Cross multiply
    185,970.52x = 278,785.68 × 80,751.52
  4. Step 4: Simplify right side
    185,970.52x = 22,512,367,414.23
  5. Step 5: Solve for x
    x = 22,512,367,414.23/185,970.52
  6. Step 6: Final answer
    x = 121,053.42

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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.