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Finding the Fourth Proportional to 73,723.88, 110,585.81 and 18,319.88

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Solution

The fourth proportional to 73,723.88, 110,585.81 and 18,319.88 is: 27,479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,723.88 : 110,585.81 = 18,319.88 : x
  2. Step 2: Convert to fraction form
    73,723.88/110,585.81 = 18,319.88/x
  3. Step 3: Cross multiply
    73,723.88x = 110,585.81 × 18,319.88
  4. Step 4: Simplify right side
    73,723.88x = 2,025,918,768.90
  5. Step 5: Solve for x
    x = 2,025,918,768.90/73,723.88
  6. Step 6: Final answer
    x = 27,479.82

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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.