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Finding the Fourth Proportional to 80,633.94, 111,020.70 and 73,160.58

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Solution

The fourth proportional to 80,633.94, 111,020.70 and 73,160.58 is: 100,731.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,633.94 : 111,020.70 = 73,160.58 : x
  2. Step 2: Convert to fraction form
    80,633.94/111,020.70 = 73,160.58/x
  3. Step 3: Cross multiply
    80,633.94x = 111,020.70 × 73,160.58
  4. Step 4: Simplify right side
    80,633.94x = 8,122,338,804.01
  5. Step 5: Solve for x
    x = 8,122,338,804.01/80,633.94
  6. Step 6: Final answer
    x = 100,731.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.