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Finding the Fourth Proportional to 73,230.98, 109,721.03 and 39,974.36

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Solution

The fourth proportional to 73,230.98, 109,721.03 and 39,974.36 is: 59,893.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,230.98 : 109,721.03 = 39,974.36 : x
  2. Step 2: Convert to fraction form
    73,230.98/109,721.03 = 39,974.36/x
  3. Step 3: Cross multiply
    73,230.98x = 109,721.03 × 39,974.36
  4. Step 4: Simplify right side
    73,230.98x = 4,386,027,204.31
  5. Step 5: Solve for x
    x = 4,386,027,204.31/73,230.98
  6. Step 6: Final answer
    x = 59,893.06

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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.