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Finding the Fourth Proportional to 90,240.75, 135,361.13 and 24,576.75

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Solution

The fourth proportional to 90,240.75, 135,361.13 and 24,576.75 is: 36,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,240.75 : 135,361.13 = 24,576.75 : x
  2. Step 2: Convert to fraction form
    90,240.75/135,361.13 = 24,576.75/x
  3. Step 3: Cross multiply
    90,240.75x = 135,361.13 × 24,576.75
  4. Step 4: Simplify right side
    90,240.75x = 3,326,736,528.84
  5. Step 5: Solve for x
    x = 3,326,736,528.84/90,240.75
  6. Step 6: Final answer
    x = 36,865.13

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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.