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Finding the Fourth Proportional to 90,576.96, 135,865.35 and 59,404.92

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Solution

The fourth proportional to 90,576.96, 135,865.35 and 59,404.92 is: 89,107.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,576.96 : 135,865.35 = 59,404.92 : x
  2. Step 2: Convert to fraction form
    90,576.96/135,865.35 = 59,404.92/x
  3. Step 3: Cross multiply
    90,576.96x = 135,865.35 × 59,404.92
  4. Step 4: Simplify right side
    90,576.96x = 8,071,070,247.52
  5. Step 5: Solve for x
    x = 8,071,070,247.52/90,576.96
  6. Step 6: Final answer
    x = 89,107.32

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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.