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Finding the Fourth Proportional to 80,466.48, 120,699.24 and 43,763.76

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Solution

The fourth proportional to 80,466.48, 120,699.24 and 43,763.76 is: 65,645.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,466.48 : 120,699.24 = 43,763.76 : x
  2. Step 2: Convert to fraction form
    80,466.48/120,699.24 = 43,763.76/x
  3. Step 3: Cross multiply
    80,466.48x = 120,699.24 × 43,763.76
  4. Step 4: Simplify right side
    80,466.48x = 5,282,252,571.54
  5. Step 5: Solve for x
    x = 5,282,252,571.54/80,466.48
  6. Step 6: Final answer
    x = 65,645.38

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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.