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Finding the Fourth Proportional to 85,122.88, 127,672.87 and 35,196.10

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Solution

The fourth proportional to 85,122.88, 127,672.87 and 35,196.10 is: 52,789.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,122.88 : 127,672.87 = 35,196.10 : x
  2. Step 2: Convert to fraction form
    85,122.88/127,672.87 = 35,196.10/x
  3. Step 3: Cross multiply
    85,122.88x = 127,672.87 × 35,196.10
  4. Step 4: Simplify right side
    85,122.88x = 4,493,587,099.81
  5. Step 5: Solve for x
    x = 4,493,587,099.81/85,122.88
  6. Step 6: Final answer
    x = 52,789.42

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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.