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Finding the Fourth Proportional to 185,669.58, 278,471.45 and 84,443.92

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Solution

The fourth proportional to 185,669.58, 278,471.45 and 84,443.92 is: 126,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,669.58 : 278,471.45 = 84,443.92 : x
  2. Step 2: Convert to fraction form
    185,669.58/278,471.45 = 84,443.92/x
  3. Step 3: Cross multiply
    185,669.58x = 278,471.45 × 84,443.92
  4. Step 4: Simplify right side
    185,669.58x = 23,515,220,771.95
  5. Step 5: Solve for x
    x = 23,515,220,771.95/185,669.58
  6. Step 6: Final answer
    x = 126,650.90

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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.