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Finding the Fourth Proportional to 80,734.33, 111,453.74 and 62,544.58

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Solution

The fourth proportional to 80,734.33, 111,453.74 and 62,544.58 is: 86,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734.33 : 111,453.74 = 62,544.58 : x
  2. Step 2: Convert to fraction form
    80,734.33/111,453.74 = 62,544.58/x
  3. Step 3: Cross multiply
    80,734.33x = 111,453.74 × 62,544.58
  4. Step 4: Simplify right side
    80,734.33x = 6,970,827,357.73
  5. Step 5: Solve for x
    x = 6,970,827,357.73/80,734.33
  6. Step 6: Final answer
    x = 86,342.79

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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.