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Finding the Fourth Proportional to 158,496.43, 218,747.51 and 98,086.53

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Solution

The fourth proportional to 158,496.43, 218,747.51 and 98,086.53 is: 135,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,496.43 : 218,747.51 = 98,086.53 : x
  2. Step 2: Convert to fraction form
    158,496.43/218,747.51 = 98,086.53/x
  3. Step 3: Cross multiply
    158,496.43x = 218,747.51 × 98,086.53
  4. Step 4: Simplify right side
    158,496.43x = 21,456,184,202.04
  5. Step 5: Solve for x
    x = 21,456,184,202.04/158,496.43
  6. Step 6: Final answer
    x = 135,373.30

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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.