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Finding the Fourth Proportional to 158,381.88, 218,484.18 and 97,933.20

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Solution

The fourth proportional to 158,381.88, 218,484.18 and 97,933.20 is: 135,096.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,381.88 : 218,484.18 = 97,933.20 : x
  2. Step 2: Convert to fraction form
    158,381.88/218,484.18 = 97,933.20/x
  3. Step 3: Cross multiply
    158,381.88x = 218,484.18 × 97,933.20
  4. Step 4: Simplify right side
    158,381.88x = 21,396,854,896.78
  5. Step 5: Solve for x
    x = 21,396,854,896.78/158,381.88
  6. Step 6: Final answer
    x = 135,096.61

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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.