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Finding the Fourth Proportional to 73,187.84, 100,999.23 and 39,653.84

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Solution

The fourth proportional to 73,187.84, 100,999.23 and 39,653.84 is: 54,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,187.84 : 100,999.23 = 39,653.84 : x
  2. Step 2: Convert to fraction form
    73,187.84/100,999.23 = 39,653.84/x
  3. Step 3: Cross multiply
    73,187.84x = 100,999.23 × 39,653.84
  4. Step 4: Simplify right side
    73,187.84x = 4,005,007,306.54
  5. Step 5: Solve for x
    x = 4,005,007,306.54/73,187.84
  6. Step 6: Final answer
    x = 54,722.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.