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Finding the Fourth Proportional to 91,020.62, 125,609.02 and 50,736.94

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Solution

The fourth proportional to 91,020.62, 125,609.02 and 50,736.94 is: 70,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,020.62 : 125,609.02 = 50,736.94 : x
  2. Step 2: Convert to fraction form
    91,020.62/125,609.02 = 50,736.94/x
  3. Step 3: Cross multiply
    91,020.62x = 125,609.02 × 50,736.94
  4. Step 4: Simplify right side
    91,020.62x = 6,373,017,311.20
  5. Step 5: Solve for x
    x = 6,373,017,311.20/91,020.62
  6. Step 6: Final answer
    x = 70,017.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.