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Finding the Fourth Proportional to 73,908.25, 110,869.64 and 19,872.26

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Solution

The fourth proportional to 73,908.25, 110,869.64 and 19,872.26 is: 29,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,908.25 : 110,869.64 = 19,872.26 : x
  2. Step 2: Convert to fraction form
    73,908.25/110,869.64 = 19,872.26/x
  3. Step 3: Cross multiply
    73,908.25x = 110,869.64 × 19,872.26
  4. Step 4: Simplify right side
    73,908.25x = 2,203,229,807.52
  5. Step 5: Solve for x
    x = 2,203,229,807.52/73,908.25
  6. Step 6: Final answer
    x = 29,810.34

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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.