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Finding the Fourth Proportional to 66,796.84, 100,311.90 and 61,522.12

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Solution

The fourth proportional to 66,796.84, 100,311.90 and 61,522.12 is: 92,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,796.84 : 100,311.90 = 61,522.12 : x
  2. Step 2: Convert to fraction form
    66,796.84/100,311.90 = 61,522.12/x
  3. Step 3: Cross multiply
    66,796.84x = 100,311.90 × 61,522.12
  4. Step 4: Simplify right side
    66,796.84x = 6,171,400,749.23
  5. Step 5: Solve for x
    x = 6,171,400,749.23/66,796.84
  6. Step 6: Final answer
    x = 92,390.61

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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.