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Finding the Fourth Proportional to 90,843.66, 136,272.42 and 27,669.13

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Solution

The fourth proportional to 90,843.66, 136,272.42 and 27,669.13 is: 41,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,843.66 : 136,272.42 = 27,669.13 : x
  2. Step 2: Convert to fraction form
    90,843.66/136,272.42 = 27,669.13/x
  3. Step 3: Cross multiply
    90,843.66x = 136,272.42 × 27,669.13
  4. Step 4: Simplify right side
    90,843.66x = 3,770,538,963.71
  5. Step 5: Solve for x
    x = 3,770,538,963.71/90,843.66
  6. Step 6: Final answer
    x = 41,505.80

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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.