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Finding the Fourth Proportional to 79,818.80, 119,632.20 and 33,047.60

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Solution

The fourth proportional to 79,818.80, 119,632.20 and 33,047.60 is: 49,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,818.80 : 119,632.20 = 33,047.60 : x
  2. Step 2: Convert to fraction form
    79,818.80/119,632.20 = 33,047.60/x
  3. Step 3: Cross multiply
    79,818.80x = 119,632.20 × 33,047.60
  4. Step 4: Simplify right side
    79,818.80x = 3,953,557,092.72
  5. Step 5: Solve for x
    x = 3,953,557,092.72/79,818.80
  6. Step 6: Final answer
    x = 49,531.65

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1.5x scale

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.