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Finding the Fourth Proportional to 80,699.97, 111,361.53 and 44,400.72

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Solution

The fourth proportional to 80,699.97, 111,361.53 and 44,400.72 is: 61,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,699.97 : 111,361.53 = 44,400.72 : x
  2. Step 2: Convert to fraction form
    80,699.97/111,361.53 = 44,400.72/x
  3. Step 3: Cross multiply
    80,699.97x = 111,361.53 × 44,400.72
  4. Step 4: Simplify right side
    80,699.97x = 4,944,532,112.30
  5. Step 5: Solve for x
    x = 4,944,532,112.30/80,699.97
  6. Step 6: Final answer
    x = 61,270.56

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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.