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Finding the Fourth Proportional to 200,720.93, 301,081.91 and 67,694.63

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Solution

The fourth proportional to 200,720.93, 301,081.91 and 67,694.63 is: 101,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,720.93 : 301,081.91 = 67,694.63 : x
  2. Step 2: Convert to fraction form
    200,720.93/301,081.91 = 67,694.63/x
  3. Step 3: Cross multiply
    200,720.93x = 301,081.91 × 67,694.63
  4. Step 4: Simplify right side
    200,720.93x = 20,381,626,653.26
  5. Step 5: Solve for x
    x = 20,381,626,653.26/200,720.93
  6. Step 6: Final answer
    x = 101,542.11

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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.