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Finding the Fourth Proportional to 158,503.81, 218,757.64 and 98,093.91

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Solution

The fourth proportional to 158,503.81, 218,757.64 and 98,093.91 is: 135,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,503.81 : 218,757.64 = 98,093.91 : x
  2. Step 2: Convert to fraction form
    158,503.81/218,757.64 = 98,093.91/x
  3. Step 3: Cross multiply
    158,503.81x = 218,757.64 × 98,093.91
  4. Step 4: Simplify right side
    158,503.81x = 21,458,792,249.97
  5. Step 5: Solve for x
    x = 21,458,792,249.97/158,503.81
  6. Step 6: Final answer
    x = 135,383.45

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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.