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Finding the Fourth Proportional to 80,638.96, 111,285.56 and 44,829.56

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Solution

The fourth proportional to 80,638.96, 111,285.56 and 44,829.56 is: 61,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,638.96 : 111,285.56 = 44,829.56 : x
  2. Step 2: Convert to fraction form
    80,638.96/111,285.56 = 44,829.56/x
  3. Step 3: Cross multiply
    80,638.96x = 111,285.56 × 44,829.56
  4. Step 4: Simplify right side
    80,638.96x = 4,988,882,743.22
  5. Step 5: Solve for x
    x = 4,988,882,743.22/80,638.96
  6. Step 6: Final answer
    x = 61,866.91

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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.