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Finding the Fourth Proportional to 90,336.56, 135,504.84 and 37,717.40

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Solution

The fourth proportional to 90,336.56, 135,504.84 and 37,717.40 is: 56,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,336.56 : 135,504.84 = 37,717.40 : x
  2. Step 2: Convert to fraction form
    90,336.56/135,504.84 = 37,717.40/x
  3. Step 3: Cross multiply
    90,336.56x = 135,504.84 × 37,717.40
  4. Step 4: Simplify right side
    90,336.56x = 5,110,890,252.22
  5. Step 5: Solve for x
    x = 5,110,890,252.22/90,336.56
  6. Step 6: Final answer
    x = 56,576.10

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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.