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Finding the Fourth Proportional to 90,653.66, 135,979.92 and 35,249.66

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Solution

The fourth proportional to 90,653.66, 135,979.92 and 35,249.66 is: 52,874.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,653.66 : 135,979.92 = 35,249.66 : x
  2. Step 2: Convert to fraction form
    90,653.66/135,979.92 = 35,249.66/x
  3. Step 3: Cross multiply
    90,653.66x = 135,979.92 × 35,249.66
  4. Step 4: Simplify right side
    90,653.66x = 4,793,245,946.83
  5. Step 5: Solve for x
    x = 4,793,245,946.83/90,653.66
  6. Step 6: Final answer
    x = 52,874.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.