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Finding the Fourth Proportional to 90,064.97, 135,112.13 and 27,735.47

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Solution

The fourth proportional to 90,064.97, 135,112.13 and 27,735.47 is: 41,607.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,064.97 : 135,112.13 = 27,735.47 : x
  2. Step 2: Convert to fraction form
    90,064.97/135,112.13 = 27,735.47/x
  3. Step 3: Cross multiply
    90,064.97x = 135,112.13 × 27,735.47
  4. Step 4: Simplify right side
    90,064.97x = 3,747,397,718.02
  5. Step 5: Solve for x
    x = 3,747,397,718.02/90,064.97
  6. Step 6: Final answer
    x = 41,607.72

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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.