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Finding the Fourth Proportional to 80,221.73, 110,724.57 and 53,365.37

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Solution

The fourth proportional to 80,221.73, 110,724.57 and 53,365.37 is: 73,656.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,221.73 : 110,724.57 = 53,365.37 : x
  2. Step 2: Convert to fraction form
    80,221.73/110,724.57 = 53,365.37/x
  3. Step 3: Cross multiply
    80,221.73x = 110,724.57 × 53,365.37
  4. Step 4: Simplify right side
    80,221.73x = 5,908,857,092.52
  5. Step 5: Solve for x
    x = 5,908,857,092.52/80,221.73
  6. Step 6: Final answer
    x = 73,656.57

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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.