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Finding the Fourth Proportional to 85,765.72, 118,354.92 and 47,524.94

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Solution

The fourth proportional to 85,765.72, 118,354.92 and 47,524.94 is: 65,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,765.72 : 118,354.92 = 47,524.94 : x
  2. Step 2: Convert to fraction form
    85,765.72/118,354.92 = 47,524.94/x
  3. Step 3: Cross multiply
    85,765.72x = 118,354.92 × 47,524.94
  4. Step 4: Simplify right side
    85,765.72x = 5,624,810,471.70
  5. Step 5: Solve for x
    x = 5,624,810,471.70/85,765.72
  6. Step 6: Final answer
    x = 65,583.43

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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.