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Finding the Fourth Proportional to 73,988.82, 110,913.96 and 36,029.79

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Solution

The fourth proportional to 73,988.82, 110,913.96 and 36,029.79 is: 54,010.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,988.82 : 110,913.96 = 36,029.79 : x
  2. Step 2: Convert to fraction form
    73,988.82/110,913.96 = 36,029.79/x
  3. Step 3: Cross multiply
    73,988.82x = 110,913.96 × 36,029.79
  4. Step 4: Simplify right side
    73,988.82x = 3,996,206,686.87
  5. Step 5: Solve for x
    x = 3,996,206,686.87/73,988.82
  6. Step 6: Final answer
    x = 54,010.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.