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Finding the Fourth Proportional to 135,796.26, 187,396.02 and 75,363.39

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Solution

The fourth proportional to 135,796.26, 187,396.02 and 75,363.39 is: 103,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,796.26 : 187,396.02 = 75,363.39 : x
  2. Step 2: Convert to fraction form
    135,796.26/187,396.02 = 75,363.39/x
  3. Step 3: Cross multiply
    135,796.26x = 187,396.02 × 75,363.39
  4. Step 4: Simplify right side
    135,796.26x = 14,122,799,339.71
  5. Step 5: Solve for x
    x = 14,122,799,339.71/135,796.26
  6. Step 6: Final answer
    x = 103,999.91

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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.