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Finding the Fourth Proportional to 158,503.94, 218,757.81 and 98,094.04

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Solution

The fourth proportional to 158,503.94, 218,757.81 and 98,094.04 is: 135,383.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,503.94 : 218,757.81 = 98,094.04 : x
  2. Step 2: Convert to fraction form
    158,503.94/218,757.81 = 98,094.04/x
  3. Step 3: Cross multiply
    158,503.94x = 218,757.81 × 98,094.04
  4. Step 4: Simplify right side
    158,503.94x = 21,458,837,364.45
  5. Step 5: Solve for x
    x = 21,458,837,364.45/158,503.94
  6. Step 6: Final answer
    x = 135,383.62

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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.