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Finding the Fourth Proportional to 133,044.61, 199,625.36 and 69,850.05

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Solution

The fourth proportional to 133,044.61, 199,625.36 and 69,850.05 is: 104,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,044.61 : 199,625.36 = 69,850.05 : x
  2. Step 2: Convert to fraction form
    133,044.61/199,625.36 = 69,850.05/x
  3. Step 3: Cross multiply
    133,044.61x = 199,625.36 × 69,850.05
  4. Step 4: Simplify right side
    133,044.61x = 13,943,841,377.27
  5. Step 5: Solve for x
    x = 13,943,841,377.27/133,044.61
  6. Step 6: Final answer
    x = 104,805.76

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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.