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Finding the Fourth Proportional to 236,751.50, 326,726.82 and 136,149.50

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Solution

The fourth proportional to 236,751.50, 326,726.82 and 136,149.50 is: 187,891.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,751.50 : 326,726.82 = 136,149.50 : x
  2. Step 2: Convert to fraction form
    236,751.50/326,726.82 = 136,149.50/x
  3. Step 3: Cross multiply
    236,751.50x = 326,726.82 × 136,149.50
  4. Step 4: Simplify right side
    236,751.50x = 44,483,693,179.59
  5. Step 5: Solve for x
    x = 44,483,693,179.59/236,751.50
  6. Step 6: Final answer
    x = 187,891.92

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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.