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Finding the Fourth Proportional to 73,760.63, 101,789.66 and 40,226.63

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Solution

The fourth proportional to 73,760.63, 101,789.66 and 40,226.63 is: 55,512.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,760.63 : 101,789.66 = 40,226.63 : x
  2. Step 2: Convert to fraction form
    73,760.63/101,789.66 = 40,226.63/x
  3. Step 3: Cross multiply
    73,760.63x = 101,789.66 × 40,226.63
  4. Step 4: Simplify right side
    73,760.63x = 4,094,654,582.26
  5. Step 5: Solve for x
    x = 4,094,654,582.26/73,760.63
  6. Step 6: Final answer
    x = 55,512.74

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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.