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Finding the Fourth Proportional to 67,309.55, 100,963.19 and 19,924.43

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Solution

The fourth proportional to 67,309.55, 100,963.19 and 19,924.43 is: 29,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,309.55 : 100,963.19 = 19,924.43 : x
  2. Step 2: Convert to fraction form
    67,309.55/100,963.19 = 19,924.43/x
  3. Step 3: Cross multiply
    67,309.55x = 100,963.19 × 19,924.43
  4. Step 4: Simplify right side
    67,309.55x = 2,011,634,164.52
  5. Step 5: Solve for x
    x = 2,011,634,164.52/67,309.55
  6. Step 6: Final answer
    x = 29,886.31

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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.