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Finding the Fourth Proportional to 90,798.91, 136,169.03 and 33,087.92

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Solution

The fourth proportional to 90,798.91, 136,169.03 and 33,087.92 is: 49,621.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,798.91 : 136,169.03 = 33,087.92 : x
  2. Step 2: Convert to fraction form
    90,798.91/136,169.03 = 33,087.92/x
  3. Step 3: Cross multiply
    90,798.91x = 136,169.03 × 33,087.92
  4. Step 4: Simplify right side
    90,798.91x = 4,505,549,372.99
  5. Step 5: Solve for x
    x = 4,505,549,372.99/90,798.91
  6. Step 6: Final answer
    x = 49,621.18

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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.