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Finding the Fourth Proportional to 81,080.73, 111,873.42 and 47,069.64

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Solution

The fourth proportional to 81,080.73, 111,873.42 and 47,069.64 is: 64,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,080.73 : 111,873.42 = 47,069.64 : x
  2. Step 2: Convert to fraction form
    81,080.73/111,873.42 = 47,069.64/x
  3. Step 3: Cross multiply
    81,080.73x = 111,873.42 × 47,069.64
  4. Step 4: Simplify right side
    81,080.73x = 5,265,841,604.97
  5. Step 5: Solve for x
    x = 5,265,841,604.97/81,080.73
  6. Step 6: Final answer
    x = 64,945.66

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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.