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Finding the Fourth Proportional to 57,161.44, 85,768.08 and 29,478.88

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Solution

The fourth proportional to 57,161.44, 85,768.08 and 29,478.88 is: 44,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,161.44 : 85,768.08 = 29,478.88 : x
  2. Step 2: Convert to fraction form
    57,161.44/85,768.08 = 29,478.88/x
  3. Step 3: Cross multiply
    57,161.44x = 85,768.08 × 29,478.88
  4. Step 4: Simplify right side
    57,161.44x = 2,528,346,938.15
  5. Step 5: Solve for x
    x = 2,528,346,938.15/57,161.44
  6. Step 6: Final answer
    x = 44,231.69

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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.