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Finding the Fourth Proportional to 90,883.53, 136,382.13 and 34,728.44

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Solution

The fourth proportional to 90,883.53, 136,382.13 and 34,728.44 is: 52,114.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,883.53 : 136,382.13 = 34,728.44 : x
  2. Step 2: Convert to fraction form
    90,883.53/136,382.13 = 34,728.44/x
  3. Step 3: Cross multiply
    90,883.53x = 136,382.13 × 34,728.44
  4. Step 4: Simplify right side
    90,883.53x = 4,736,337,936.87
  5. Step 5: Solve for x
    x = 4,736,337,936.87/90,883.53
  6. Step 6: Final answer
    x = 52,114.37

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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.