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Finding the Fourth Proportional to 80,735.79, 111,446.39 and 60,650.93

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Solution

The fourth proportional to 80,735.79, 111,446.39 and 60,650.93 is: 83,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,735.79 : 111,446.39 = 60,650.93 : x
  2. Step 2: Convert to fraction form
    80,735.79/111,446.39 = 60,650.93/x
  3. Step 3: Cross multiply
    80,735.79x = 111,446.39 × 60,650.93
  4. Step 4: Simplify right side
    80,735.79x = 6,759,327,198.64
  5. Step 5: Solve for x
    x = 6,759,327,198.64/80,735.79
  6. Step 6: Final answer
    x = 83,721.57

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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.