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Finding the Fourth Proportional to 79,778.52, 119,235.24 and 73,473.48

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Solution

The fourth proportional to 79,778.52, 119,235.24 and 73,473.48 is: 109,811.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,778.52 : 119,235.24 = 73,473.48 : x
  2. Step 2: Convert to fraction form
    79,778.52/119,235.24 = 73,473.48/x
  3. Step 3: Cross multiply
    79,778.52x = 119,235.24 × 73,473.48
  4. Step 4: Simplify right side
    79,778.52x = 8,760,628,021.44
  5. Step 5: Solve for x
    x = 8,760,628,021.44/79,778.52
  6. Step 6: Final answer
    x = 109,811.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.