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Finding the Fourth Proportional to 66,977.84, 100,466.76 and 52,197.84

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Solution

The fourth proportional to 66,977.84, 100,466.76 and 52,197.84 is: 78,296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,977.84 : 100,466.76 = 52,197.84 : x
  2. Step 2: Convert to fraction form
    66,977.84/100,466.76 = 52,197.84/x
  3. Step 3: Cross multiply
    66,977.84x = 100,466.76 × 52,197.84
  4. Step 4: Simplify right side
    66,977.84x = 5,244,147,863.80
  5. Step 5: Solve for x
    x = 5,244,147,863.80/66,977.84
  6. Step 6: Final answer
    x = 78,296.76

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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.