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Finding the Fourth Proportional to 136,212.26, 187,866.41 and 88,480.98

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Solution

The fourth proportional to 136,212.26, 187,866.41 and 88,480.98 is: 122,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,212.26 : 187,866.41 = 88,480.98 : x
  2. Step 2: Convert to fraction form
    136,212.26/187,866.41 = 88,480.98/x
  3. Step 3: Cross multiply
    136,212.26x = 187,866.41 × 88,480.98
  4. Step 4: Simplify right side
    136,212.26x = 16,622,603,623.48
  5. Step 5: Solve for x
    x = 16,622,603,623.48/136,212.26
  6. Step 6: Final answer
    x = 122,034.57

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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.