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Finding the Fourth Proportional to 98,205.46, 135,524.46 and 55,764.88

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Solution

The fourth proportional to 98,205.46, 135,524.46 and 55,764.88 is: 76,956.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,205.46 : 135,524.46 = 55,764.88 : x
  2. Step 2: Convert to fraction form
    98,205.46/135,524.46 = 55,764.88/x
  3. Step 3: Cross multiply
    98,205.46x = 135,524.46 × 55,764.88
  4. Step 4: Simplify right side
    98,205.46x = 7,557,505,248.96
  5. Step 5: Solve for x
    x = 7,557,505,248.96/98,205.46
  6. Step 6: Final answer
    x = 76,956.06

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1.5x scale

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.