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Finding the Fourth Proportional to 241,920, 333,849.60 and 135,936

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Solution

The fourth proportional to 241,920, 333,849.60 and 135,936 is: 187,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,920 : 333,849.60 = 135,936 : x
  2. Step 2: Convert to fraction form
    241,920/333,849.60 = 135,936/x
  3. Step 3: Cross multiply
    241,920x = 333,849.60 × 135,936
  4. Step 4: Simplify right side
    241,920x = 45,382,179,225.60
  5. Step 5: Solve for x
    x = 45,382,179,225.60/241,920
  6. Step 6: Final answer
    x = 187,591.68

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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.