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Finding the Fourth Proportional to 60,181.67, 90,207.34 and 39,136.82

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Solution

The fourth proportional to 60,181.67, 90,207.34 and 39,136.82 is: 58,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,181.67 : 90,207.34 = 39,136.82 : x
  2. Step 2: Convert to fraction form
    60,181.67/90,207.34 = 39,136.82/x
  3. Step 3: Cross multiply
    60,181.67x = 90,207.34 × 39,136.82
  4. Step 4: Simplify right side
    60,181.67x = 3,530,428,226.97
  5. Step 5: Solve for x
    x = 3,530,428,226.97/60,181.67
  6. Step 6: Final answer
    x = 58,662.85

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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.