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Finding the Fourth Proportional to 90,641.02, 135,960.99 and 35,237.02

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Solution

The fourth proportional to 90,641.02, 135,960.99 and 35,237.02 is: 52,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,641.02 : 135,960.99 = 35,237.02 : x
  2. Step 2: Convert to fraction form
    90,641.02/135,960.99 = 35,237.02/x
  3. Step 3: Cross multiply
    90,641.02x = 135,960.99 × 35,237.02
  4. Step 4: Simplify right side
    90,641.02x = 4,790,860,123.85
  5. Step 5: Solve for x
    x = 4,790,860,123.85/90,641.02
  6. Step 6: Final answer
    x = 52,855.32

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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.