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Finding the Fourth Proportional to 73,013.82, 100,759.11 and 39,479.82

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Solution

The fourth proportional to 73,013.82, 100,759.11 and 39,479.82 is: 54,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,013.82 : 100,759.11 = 39,479.82 : x
  2. Step 2: Convert to fraction form
    73,013.82/100,759.11 = 39,479.82/x
  3. Step 3: Cross multiply
    73,013.82x = 100,759.11 × 39,479.82
  4. Step 4: Simplify right side
    73,013.82x = 3,977,951,526.16
  5. Step 5: Solve for x
    x = 3,977,951,526.16/73,013.82
  6. Step 6: Final answer
    x = 54,482.17

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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.