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Finding the Fourth Proportional to 135,121.50, 202,682.25 and 36,625.50

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Solution

The fourth proportional to 135,121.50, 202,682.25 and 36,625.50 is: 54,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,121.50 : 202,682.25 = 36,625.50 : x
  2. Step 2: Convert to fraction form
    135,121.50/202,682.25 = 36,625.50/x
  3. Step 3: Cross multiply
    135,121.50x = 202,682.25 × 36,625.50
  4. Step 4: Simplify right side
    135,121.50x = 7,423,338,747.38
  5. Step 5: Solve for x
    x = 7,423,338,747.38/135,121.50
  6. Step 6: Final answer
    x = 54,938.25

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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.